| Ejercicio 1 | ||
-13x-7 |
= |
3x+233 |
-13x-3x |
= |
233+7 |
-16x |
= |
240 |
x |
= |
240/-16 |
x |
= |
-15 |
Comprobación |
-13(-15)-7 |
= |
3(-15)+233 |
195-7 |
= |
-45+233 |
188 |
= |
188 |
| www.educa.mx |
| Ejercicio 2 | ||
13x+8 |
= |
-14x-343 |
13x+14x |
= |
-343-8 |
27x |
= |
-351 |
x |
= |
-351/27 |
x |
= |
-13 |
Comprobación |
13(-13)+8 |
= |
-14(-13)-343 |
-169+8 |
= |
182-343 |
-161 |
= |
-161 |
| www.educa.mx |
| Ejercicio 3 | ||
12x+1 |
= |
-15x-404 |
12x+15x |
= |
-404-1 |
27x |
= |
-405 |
x |
= |
-405/27 |
x |
= |
-15 |
Comprobación |
12(-15)+1 |
= |
-15(-15)-404 |
-180+1 |
= |
225-404 |
-179 |
= |
-179 |
| www.educa.mx |
| Ejercicio 4 | ||
-5x+9 |
= |
12x+179 |
-5x-12x |
= |
179-9 |
-17x |
= |
170 |
x |
= |
170/-17 |
x |
= |
-10 |
Comprobación |
-5(-10)+9 |
= |
12(-10)+179 |
50+9 |
= |
-120+179 |
59 |
= |
59 |
| www.educa.mx |
| Ejercicio 5 | ||
-x+15 |
= |
5x+15 |
-x-5x |
= |
15-15 |
-6x |
= |
0 |
x |
= |
0/-6 |
x |
= |
0 |
Comprobación |
-(0)+15 |
= |
5(0)+15 |
0+15 |
= |
0+15 |
15 |
= |
15 |
| www.educa.mx |
| Ejercicio 6 | ||
-6x-10 |
= |
4x+80 |
-6x-4x |
= |
80+10 |
-10x |
= |
90 |
x |
= |
90/-10 |
x |
= |
-9 |
Comprobación |
-6(-9)-10 |
= |
4(-9)+80 |
54-10 |
= |
-36+80 |
44 |
= |
44 |
| www.educa.mx |
| Ejercicio 7 | ||
7x+10 |
= |
-7x+94 |
7x+7x |
= |
94-10 |
14x |
= |
84 |
x |
= |
84/14 |
x |
= |
6 |
Comprobación |
7(6)+10 |
= |
-7(6)+94 |
42+10 |
= |
-42+94 |
52 |
= |
52 |
| www.educa.mx |
| Ejercicio 8 | ||
-14x-12 |
= |
12x+92 |
-14x-12x |
= |
92+12 |
-26x |
= |
104 |
x |
= |
104/-26 |
x |
= |
-4 |
Comprobación |
-14(-4)-12 |
= |
12(-4)+92 |
56-12 |
= |
-48+92 |
44 |
= |
44 |
| www.educa.mx |
| Ejercicio 9 | ||
6x-7 |
= |
-8x-105 |
6x+8x |
= |
-105+7 |
14x |
= |
-98 |
x |
= |
-98/14 |
x |
= |
-7 |
Comprobación |
6(-7)-7 |
= |
-8(-7)-105 |
-42-7 |
= |
56-105 |
-49 |
= |
-49 |
| www.educa.mx |
| Ejercicio 10 | ||
-12x+10 |
= |
10x-166 |
-12x-10x |
= |
-166-10 |
-22x |
= |
-176 |
x |
= |
-176/-22 |
x |
= |
8 |
Comprobación |
-12(8)+10 |
= |
10(8)-166 |
-96+10 |
= |
80-166 |
-86 |
= |
-86 |
| www.educa.mx |
| Ejercicio 11 | ||
-9x+2 |
= |
2x+167 |
-9x-2x |
= |
167-2 |
-11x |
= |
165 |
x |
= |
165/-11 |
x |
= |
-15 |
Comprobación |
-9(-15)+2 |
= |
2(-15)+167 |
135+2 |
= |
-30+167 |
137 |
= |
137 |
| www.educa.mx |
| Ejercicio 12 | ||
x-15 |
= |
6x-40 |
x-6x |
= |
-40+15 |
-5x |
= |
-25 |
x |
= |
-25/-5 |
x |
= |
5 |
Comprobación |
5-15 |
= |
6(5)-40 |
5-15 |
30-40 | |
-10 |
= |
-10 |
| www.educa.mx |
| Ejercicio 13 | ||
-7x+5 |
= |
14x+194 |
-7x-14x |
= |
194-5 |
-21x |
= |
189 |
x |
= |
189/-21 |
x |
= |
-9 |
Comprobación |
-7(-9)+5 |
= |
14(-9)+194 |
63+5 |
= |
-126+194 |
68 |
= |
68 |
| www.educa.mx |
| Ejercicio 14 | ||
-12x+2 |
= |
2x-166 |
-12x-2x |
= |
-166-2 |
-14x |
= |
-168 |
x |
= |
-168/-14 |
x |
= |
12 |
Comprobación |
-12(12)+2 |
= |
2(12)-166 |
-144+2 |
= |
24-166 |
-142 |
= |
-142 |
| www.educa.mx |
| Ejercicio 15 | ||
3x+8 |
= |
-12x-67 |
3x+12x |
= |
-67-8 |
15x |
= |
-75 |
x |
= |
-75/15 |
x |
= |
-5 |
Comprobación |
3(-5)+8 |
= |
-12(-5)-67 |
-15+8 |
= |
60-67 |
-7 |
= |
-7 |
| www.educa.mx |
| Ejercicio 16 | ||
11x+8 |
= |
4x+36 |
11x-4x |
= |
36-8 |
7x |
= |
28 |
x |
= |
28/7 |
x |
= |
4 |
Comprobación |
11(4)+8 |
= |
4(4)+36 |
44+8 |
= |
16+36 |
52 |
= |
52 |
| www.educa.mx |
| Ejercicio 17 | ||
-10x-15 |
= |
-x-60 |
-10x+x |
= |
-60+15 |
-9x |
= |
-45 |
x |
= |
-45/-9 |
x |
= |
5 |
Comprobación |
-10(5)-15 |
= |
-(5)-60 |
-50-15 |
= |
-5-60 |
-65 |
= |
-65 |
| www.educa.mx |
| Ejercicio 18 | ||
-12x+14 |
= |
12x-82 |
-12x-12x |
= |
-82-14 |
-24x |
= |
-96 |
x |
= |
-96/-24 |
x |
= |
4 |
Comprobación |
-12(4)+14 |
= |
12(4)-82 |
-48+14 |
= |
48-82 |
-34 |
= |
-34 |
| www.educa.mx |
| Ejercicio 19 | ||
x-15 |
= |
8x+6 |
x-8x |
= |
6+15 |
-7x |
= |
21 |
x |
= |
21/-7 |
x |
= |
-3 |
Comprobación |
-3-15 |
= |
8(-3)+6 |
-3-15 |
-24+6 | |
-18 |
= |
-18 |
| www.educa.mx |
| Ejercicio 20 | ||
-10x-13 |
= |
-14x+7 |
-10x+14x |
= |
7+13 |
4x |
= |
20 |
x |
= |
20/4 |
x |
= |
5 |
Comprobación |
-10(5)-13 |
= |
-14(5)+7 |
-50-13 |
= |
-70+7 |
-63 |
= |
-63 |
| www.educa.mx |
| Ejercicio 21 | ||
4x+11 |
= |
-2x-49 |
4x+2x |
= |
-49-11 |
6x |
= |
-60 |
x |
= |
-60/6 |
x |
= |
-10 |
Comprobación |
4(-10)+11 |
= |
-2(-10)-49 |
-40+11 |
= |
20-49 |
-29 |
= |
-29 |
| www.educa.mx |
| Ejercicio 22 | ||
10x+8 |
= |
-6x-56 |
10x+6x |
= |
-56-8 |
16x |
= |
-64 |
x |
= |
-64/16 |
x |
= |
-4 |
Comprobación |
10(-4)+8 |
= |
-6(-4)-56 |
-40+8 |
= |
24-56 |
-32 |
= |
-32 |
| www.educa.mx |
| Ejercicio 23 | ||
5x-15 |
= |
6x-7 |
5x-6x |
= |
-7+15 |
-x |
= |
8 |
x |
= |
8/-1 |
x |
= |
-8 |
Comprobación |
5(-8)-15 |
= |
6(-8)-7 |
-40-15 |
= |
-48-7 |
-55 |
= |
-55 |
| www.educa.mx |
| Ejercicio 24 | ||
2x+2 |
= |
3x-10 |
2x-3x |
= |
-10-2 |
-x |
= |
-12 |
x |
= |
-12/-1 |
x |
= |
12 |
Comprobación |
2(12)+2 |
= |
3(12)-10 |
24+2 |
= |
36-10 |
26 |
= |
26 |
| www.educa.mx |
| Ejercicio 25 | ||
-x+14 |
= |
10x+124 |
-x-10x |
= |
124-14 |
-11x |
= |
110 |
x |
= |
110/-11 |
x |
= |
-10 |
Comprobación |
-(-10)+14 |
= |
10(-10)+124 |
10+14 |
= |
-100+124 |
24 |
= |
24 |
| www.educa.mx |
| Ejercicio 26 | ||
-7x+15 |
= |
12x+91 |
-7x-12x |
= |
91-15 |
-19x |
= |
76 |
x |
= |
76/-19 |
x |
= |
-4 |
Comprobación |
-7(-4)+15 |
= |
12(-4)+91 |
28+15 |
= |
-48+91 |
43 |
= |
43 |
| www.educa.mx |
| Ejercicio 27 | ||
4x-9 |
= |
10x-3 |
4x-10x |
= |
-3+9 |
-6x |
= |
6 |
x |
= |
6/-6 |
x |
= |
-1 |
Comprobación |
4(-1)-9 |
= |
10(-1)-3 |
-4-9 |
= |
-10-3 |
-13 |
= |
-13 |
| www.educa.mx |
| Ejercicio 28 | ||
-11x+8 |
= |
-12x+2 |
-11x+12x |
= |
2-8 |
x |
= |
-6 |
Comprobación |
-11(-6)+8 |
= |
-12(-6)+2 |
66+8 |
= |
72+2 |
74 |
= |
74 |
| www.educa.mx |
| Ejercicio 29 | ||
-4x-6 |
= |
2x+6 |
-4x-2x |
= |
6+6 |
-6x |
= |
12 |
x |
= |
12/-6 |
x |
= |
-2 |
Comprobación |
-4(-2)-6 |
= |
2(-2)+6 |
8-6 |
= |
-4+6 |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 30 | ||
-3x+8 |
= |
13x-8 |
-3x-13x |
= |
-8-8 |
-16x |
= |
-16 |
x |
= |
-16/-16 |
x |
= |
1 |
Comprobación |
-3(1)+8 |
= |
13(1)-8 |
-3+8 |
= |
13-8 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 31 | ||
-4x+5 |
= |
2x+11 |
-4x-2x |
= |
11-5 |
-6x |
= |
6 |
x |
= |
6/-6 |
x |
= |
-1 |
Comprobación |
-4(-1)+5 |
= |
2(-1)+11 |
4+5 |
= |
-2+11 |
9 |
= |
9 |
| www.educa.mx |
| Ejercicio 32 | ||
-2x+13 |
= |
-4x-17 |
-2x+4x |
= |
-17-13 |
2x |
= |
-30 |
x |
= |
-30/2 |
x |
= |
-15 |
Comprobación |
-2(-15)+13 |
= |
-4(-15)-17 |
30+13 |
= |
60-17 |
43 |
= |
43 |
| www.educa.mx |
| Ejercicio 33 | ||
12x-13 |
= |
10x-5 |
12x-10x |
= |
-5+13 |
2x |
= |
8 |
x |
= |
8/2 |
x |
= |
4 |
Comprobación |
12(4)-13 |
= |
10(4)-5 |
48-13 |
= |
40-5 |
35 |
= |
35 |
| www.educa.mx |
| Ejercicio 34 | ||
7x+15 |
= |
3x-41 |
7x-3x |
= |
-41-15 |
4x |
= |
-56 |
x |
= |
-56/4 |
x |
= |
-14 |
Comprobación |
7(-14)+15 |
= |
3(-14)-41 |
-98+15 |
= |
-42-41 |
-83 |
= |
-83 |
| www.educa.mx |
| Ejercicio 35 | ||
-14x-14 |
= |
12x-40 |
-14x-12x |
= |
-40+14 |
-26x |
= |
-26 |
x |
= |
-26/-26 |
x |
= |
1 |
Comprobación |
-14(1)-14 |
= |
12(1)-40 |
-14-14 |
= |
12-40 |
-28 |
= |
-28 |
| www.educa.mx |
| Ejercicio 36 | ||
-2x+5 |
= |
5x-58 |
-2x-5x |
= |
-58-5 |
-7x |
= |
-63 |
x |
= |
-63/-7 |
x |
= |
9 |
Comprobación |
-2(9)+5 |
= |
5(9)-58 |
-18+5 |
= |
45-58 |
-13 |
= |
-13 |
| www.educa.mx |
| Ejercicio 37 | ||
5x+12 |
= |
-3x-60 |
5x+3x |
= |
-60-12 |
8x |
= |
-72 |
x |
= |
-72/8 |
x |
= |
-9 |
Comprobación |
5(-9)+12 |
= |
-3(-9)-60 |
-45+12 |
= |
27-60 |
-33 |
= |
-33 |
| www.educa.mx |
| Ejercicio 38 | ||
-2x-6 |
= |
8x-76 |
-2x-8x |
= |
-76+6 |
-10x |
= |
-70 |
x |
= |
-70/-10 |
x |
= |
7 |
Comprobación |
-2(7)-6 |
= |
8(7)-76 |
-14-6 |
= |
56-76 |
-20 |
= |
-20 |
| www.educa.mx |
| Ejercicio 39 | ||
5x+3 |
= |
-6x-162 |
5x+6x |
= |
-162-3 |
11x |
= |
-165 |
x |
= |
-165/11 |
x |
= |
-15 |
Comprobación |
5(-15)+3 |
= |
-6(-15)-162 |
-75+3 |
= |
90-162 |
-72 |
= |
-72 |
| www.educa.mx |
| Ejercicio 40 | ||
-11x-11 |
= |
-8x-2 |
-11x+8x |
= |
-2+11 |
-3x |
= |
9 |
x |
= |
9/-3 |
x |
= |
-3 |
Comprobación |
-11(-3)-11 |
= |
-8(-3)-2 |
33-11 |
= |
24-2 |
22 |
= |
22 |
| www.educa.mx |
| Ejercicio 41 | ||
-10x-1 |
= |
-13x+8 |
-10x+13x |
= |
8+1 |
3x |
= |
9 |
x |
= |
9/3 |
x |
= |
3 |
Comprobación |
-10(3)-1 |
= |
-13(3)+8 |
-30-1 |
= |
-39+8 |
-31 |
= |
-31 |
| www.educa.mx |
| Ejercicio 42 | ||
-8x+9 |
= |
-10x-1 |
-8x+10x |
= |
-1-9 |
2x |
= |
-10 |
x |
= |
-10/2 |
x |
= |
-5 |
Comprobación |
-8(-5)+9 |
= |
-10(-5)-1 |
40+9 |
= |
50-1 |
49 |
= |
49 |
| www.educa.mx |
| Ejercicio 43 | ||
-6x+6 |
= |
-12x-66 |
-6x+12x |
= |
-66-6 |
6x |
= |
-72 |
x |
= |
-72/6 |
x |
= |
-12 |
Comprobación |
-6(-12)+6 |
= |
-12(-12)-66 |
72+6 |
= |
144-66 |
78 |
= |
78 |
| www.educa.mx |
| Ejercicio 44 | ||
4x+13 |
= |
14x+103 |
4x-14x |
= |
103-13 |
-10x |
= |
90 |
x |
= |
90/-10 |
x |
= |
-9 |
Comprobación |
4(-9)+13 |
= |
14(-9)+103 |
-36+13 |
= |
-126+103 |
-23 |
= |
-23 |
| www.educa.mx |
| Ejercicio 45 | ||
-11x+2 |
= |
-3x-54 |
-11x+3x |
= |
-54-2 |
-8x |
= |
-56 |
x |
= |
-56/-8 |
x |
= |
7 |
Comprobación |
-11(7)+2 |
= |
-3(7)-54 |
-77+2 |
= |
-21-54 |
-75 |
= |
-75 |
| www.educa.mx |
| Ejercicio 46 | ||
-8x+9 |
= |
11x-181 |
-8x-11x |
= |
-181-9 |
-19x |
= |
-190 |
x |
= |
-190/-19 |
x |
= |
10 |
Comprobación |
-8(10)+9 |
= |
11(10)-181 |
-80+9 |
= |
110-181 |
-71 |
= |
-71 |
| www.educa.mx |
| Ejercicio 47 | ||
10x+5 |
= |
-15x+105 |
10x+15x |
= |
105-5 |
25x |
= |
100 |
x |
= |
100/25 |
x |
= |
4 |
Comprobación |
10(4)+5 |
= |
-15(4)+105 |
40+5 |
= |
-60+105 |
45 |
= |
45 |
| www.educa.mx |
| Ejercicio 48 | ||
2x+1 |
= |
-7x-8 |
2x+7x |
= |
-8-1 |
9x |
= |
-9 |
x |
= |
-9/9 |
x |
= |
-1 |
Comprobación |
2(-1)+1 |
= |
-7(-1)-8 |
-2+1 |
= |
7-8 |
-1 |
= |
-1 |
| www.educa.mx |
| Ejercicio 49 | ||
-10x-4 |
= |
-5x+36 |
-10x+5x |
= |
36+4 |
-5x |
= |
40 |
x |
= |
40/-5 |
x |
= |
-8 |
Comprobación |
-10(-8)-4 |
= |
-5(-8)+36 |
80-4 |
= |
40+36 |
76 |
= |
76 |
| www.educa.mx |
| Ejercicio 50 | ||
-13x+9 |
= |
-x-15 |
-13x+x |
= |
-15-9 |
-12x |
= |
-24 |
x |
= |
-24/-12 |
x |
= |
2 |
Comprobación |
-13(2)+9 |
= |
-(2)-15 |
-26+9 |
= |
-2-15 |
-17 |
= |
-17 |
| www.educa.mx |
| Ejercicio 51 | ||
-8x+6 |
= |
7x+36 |
-8x-7x |
= |
36-6 |
-15x |
= |
30 |
x |
= |
30/-15 |
x |
= |
-2 |
Comprobación |
-8(-2)+6 |
= |
7(-2)+36 |
16+6 |
= |
-14+36 |
22 |
= |
22 |
| www.educa.mx |
| Ejercicio 52 | ||
-5x-14 |
= |
-14x-23 |
-5x+14x |
= |
-23+14 |
9x |
= |
-9 |
x |
= |
-9/9 |
x |
= |
-1 |
Comprobación |
-5(-1)-14 |
= |
-14(-1)-23 |
5-14 |
= |
14-23 |
-9 |
= |
-9 |
| www.educa.mx |
| Ejercicio 53 | ||
5x+14 |
= |
14x+14 |
5x-14x |
= |
14-14 |
-9x |
= |
0 |
x |
= |
0/-9 |
x |
= |
0 |
Comprobación |
5(0)+14 |
= |
14(0)+14 |
0+14 |
= |
0+14 |
14 |
= |
14 |
| www.educa.mx |
| Ejercicio 54 | ||
4x+14 |
= |
-4x+62 |
4x+4x |
= |
62-14 |
8x |
= |
48 |
x |
= |
48/8 |
x |
= |
6 |
Comprobación |
4(6)+14 |
= |
-4(6)+62 |
24+14 |
= |
-24+62 |
38 |
= |
38 |
| www.educa.mx |
| Ejercicio 55 | ||
2x-14 |
= |
-7x-77 |
2x+7x |
= |
-77+14 |
9x |
= |
-63 |
x |
= |
-63/9 |
x |
= |
-7 |
Comprobación |
2(-7)-14 |
= |
-7(-7)-77 |
-14-14 |
= |
49-77 |
-28 |
= |
-28 |
| www.educa.mx |
| Ejercicio 56 | ||
-5x-7 |
= |
-10x-47 |
-5x+10x |
= |
-47+7 |
5x |
= |
-40 |
x |
= |
-40/5 |
x |
= |
-8 |
Comprobación |
-5(-8)-7 |
= |
-10(-8)-47 |
40-7 |
= |
80-47 |
33 |
= |
33 |
| www.educa.mx |
| Ejercicio 57 | ||
-11x-10 |
= |
6x-27 |
-11x-6x |
= |
-27+10 |
-17x |
= |
-17 |
x |
= |
-17/-17 |
x |
= |
1 |
Comprobación |
-11(1)-10 |
= |
6(1)-27 |
-11-10 |
= |
6-27 |
-21 |
= |
-21 |
| www.educa.mx |
| Ejercicio 58 | ||
-6x-9 |
= |
-13x-107 |
-6x+13x |
= |
-107+9 |
7x |
= |
-98 |
x |
= |
-98/7 |
x |
= |
-14 |
Comprobación |
-6(-14)-9 |
= |
-13(-14)-107 |
84-9 |
= |
182-107 |
75 |
= |
75 |
| www.educa.mx |
| Ejercicio 59 | ||
-6x+8 |
= |
-11x+13 |
-6x+11x |
= |
13-8 |
5x |
= |
5 |
x |
= |
5/5 |
x |
= |
1 |
Comprobación |
-6(1)+8 |
= |
-11(1)+13 |
-6+8 |
= |
-11+13 |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 60 | ||
13x-6 |
= |
-6x-196 |
13x+6x |
= |
-196+6 |
19x |
= |
-190 |
x |
= |
-190/19 |
x |
= |
-10 |
Comprobación |
13(-10)-6 |
= |
-6(-10)-196 |
-130-6 |
= |
60-196 |
-136 |
= |
-136 |
| www.educa.mx |
| Ejercicio 61 | ||
9x+2 |
= |
-10x+21 |
9x+10x |
= |
21-2 |
19x |
= |
19 |
x |
= |
19/19 |
x |
= |
1 |
Comprobación |
9(1)+2 |
= |
-10(1)+21 |
9+2 |
= |
-10+21 |
11 |
= |
11 |
| www.educa.mx |
| Ejercicio 62 | ||
5x-4 |
= |
-14x+243 |
5x+14x |
= |
243+4 |
19x |
= |
247 |
x |
= |
247/19 |
x |
= |
13 |
Comprobación |
5(13)-4 |
= |
-14(13)+243 |
65-4 |
= |
-182+243 |
61 |
= |
61 |
| www.educa.mx |
| Ejercicio 63 | ||
-9x+7 |
= |
4x+150 |
-9x-4x |
= |
150-7 |
-13x |
= |
143 |
x |
= |
143/-13 |
x |
= |
-11 |
Comprobación |
-9(-11)+7 |
= |
4(-11)+150 |
99+7 |
= |
-44+150 |
106 |
= |
106 |
| www.educa.mx |
| Ejercicio 64 | ||
-5x-14 |
= |
12x-235 |
-5x-12x |
= |
-235+14 |
-17x |
= |
-221 |
x |
= |
-221/-17 |
x |
= |
13 |
Comprobación |
-5(13)-14 |
= |
12(13)-235 |
-65-14 |
= |
156-235 |
-79 |
= |
-79 |
| www.educa.mx |
| Ejercicio 65 | ||
x-13 |
= |
13x+35 |
x-13x |
= |
35+13 |
-12x |
= |
48 |
x |
= |
48/-12 |
x |
= |
-4 |
Comprobación |
-4-13 |
= |
13(-4)+35 |
-4-13 |
-52+35 | |
-17 |
= |
-17 |
| www.educa.mx |
| Ejercicio 66 | ||
10x+8 |
= |
8x+16 |
10x-8x |
= |
16-8 |
2x |
= |
8 |
x |
= |
8/2 |
x |
= |
4 |
Comprobación |
10(4)+8 |
= |
8(4)+16 |
40+8 |
= |
32+16 |
48 |
= |
48 |
| www.educa.mx |
| Ejercicio 67 | ||
4x-11 |
= |
-6x-101 |
4x+6x |
= |
-101+11 |
10x |
= |
-90 |
x |
= |
-90/10 |
x |
= |
-9 |
Comprobación |
4(-9)-11 |
= |
-6(-9)-101 |
-36-11 |
= |
54-101 |
-47 |
= |
-47 |
| www.educa.mx |
| Ejercicio 68 | ||
-2x-14 |
= |
10x-86 |
-2x-10x |
= |
-86+14 |
-12x |
= |
-72 |
x |
= |
-72/-12 |
x |
= |
6 |
Comprobación |
-2(6)-14 |
= |
10(6)-86 |
-12-14 |
= |
60-86 |
-26 |
= |
-26 |
| www.educa.mx |
| Ejercicio 69 | ||
-2x+8 |
= |
-4x-14 |
-2x+4x |
= |
-14-8 |
2x |
= |
-22 |
x |
= |
-22/2 |
x |
= |
-11 |
Comprobación |
-2(-11)+8 |
= |
-4(-11)-14 |
22+8 |
= |
44-14 |
30 |
= |
30 |
| www.educa.mx |
| Ejercicio 70 | ||
12x-1 |
= |
x-144 |
12x-x |
= |
-144+1 |
11x |
= |
-143 |
x |
= |
-143/11 |
x |
= |
-13 |
Comprobación |
12(-13)-1 |
= |
(-13)-144 |
-156-1 |
= |
-13-144 |
-157 |
= |
-157 |
| www.educa.mx |
| Ejercicio 71 | ||
7x+1 |
= |
-5x-119 |
7x+5x |
= |
-119-1 |
12x |
= |
-120 |
x |
= |
-120/12 |
x |
= |
-10 |
Comprobación |
7(-10)+1 |
= |
-5(-10)-119 |
-70+1 |
= |
50-119 |
-69 |
= |
-69 |
| www.educa.mx |
| Ejercicio 72 | ||
-4x-12 |
= |
-6x-42 |
-4x+6x |
= |
-42+12 |
2x |
= |
-30 |
x |
= |
-30/2 |
x |
= |
-15 |
Comprobación |
-4(-15)-12 |
= |
-6(-15)-42 |
60-12 |
= |
90-42 |
48 |
= |
48 |
| www.educa.mx |
| Ejercicio 73 | ||
5x-15 |
= |
x+29 |
5x-x |
= |
29+15 |
4x |
= |
44 |
x |
= |
44/4 |
x |
= |
11 |
Comprobación |
5(11)-15 |
= |
(11)+29 |
55-15 |
= |
11+29 |
40 |
= |
40 |
| www.educa.mx |
| Ejercicio 74 | ||
14x-6 |
= |
-9x+270 |
14x+9x |
= |
270+6 |
23x |
= |
276 |
x |
= |
276/23 |
x |
= |
12 |
Comprobación |
14(12)-6 |
= |
-9(12)+270 |
168-6 |
= |
-108+270 |
162 |
= |
162 |
| www.educa.mx |
| Ejercicio 75 | ||
-6x-1 |
= |
-3x-34 |
-6x+3x |
= |
-34+1 |
-3x |
= |
-33 |
x |
= |
-33/-3 |
x |
= |
11 |
Comprobación |
-6(11)-1 |
= |
-3(11)-34 |
-66-1 |
= |
-33-34 |
-67 |
= |
-67 |
| www.educa.mx |
| Ejercicio 76 | ||
5x+1 |
= |
-6x-43 |
5x+6x |
= |
-43-1 |
11x |
= |
-44 |
x |
= |
-44/11 |
x |
= |
-4 |
Comprobación |
5(-4)+1 |
= |
-6(-4)-43 |
-20+1 |
= |
24-43 |
-19 |
= |
-19 |
| www.educa.mx |
| Ejercicio 77 | ||
-10x-13 |
= |
9x+44 |
-10x-9x |
= |
44+13 |
-19x |
= |
57 |
x |
= |
57/-19 |
x |
= |
-3 |
Comprobación |
-10(-3)-13 |
= |
9(-3)+44 |
30-13 |
= |
-27+44 |
17 |
= |
17 |
| www.educa.mx |
| Ejercicio 78 | ||
10x+11 |
= |
2x-109 |
10x-2x |
= |
-109-11 |
8x |
= |
-120 |
x |
= |
-120/8 |
x |
= |
-15 |
Comprobación |
10(-15)+11 |
= |
2(-15)-109 |
-150+11 |
= |
-30-109 |
-139 |
= |
-139 |
| www.educa.mx |
| Ejercicio 79 | ||
x-2 |
= |
-5x-74 |
x+5x |
= |
-74+2 |
6x |
= |
-72 |
x |
= |
-72/6 |
x |
= |
-12 |
Comprobación |
-12-2 |
= |
-5(-12)-74 |
-12-2 |
60-74 | |
-14 |
= |
-14 |
| www.educa.mx |
| Ejercicio 80 | ||
-14x+5 |
= |
x+140 |
-14x-x |
= |
140-5 |
-15x |
= |
135 |
x |
= |
135/-15 |
x |
= |
-9 |
Comprobación |
-14(-9)+5 |
= |
(-9)+140 |
126+5 |
= |
-9+140 |
131 |
= |
131 |
| www.educa.mx |
| Ejercicio 81 | ||
11x-3 |
= |
-7x-75 |
11x+7x |
= |
-75+3 |
18x |
= |
-72 |
x |
= |
-72/18 |
x |
= |
-4 |
Comprobación |
11(-4)-3 |
= |
-7(-4)-75 |
-44-3 |
= |
28-75 |
-47 |
= |
-47 |
| www.educa.mx |
| Ejercicio 82 | ||
2x-15 |
= |
8x-75 |
2x-8x |
= |
-75+15 |
-6x |
= |
-60 |
x |
= |
-60/-6 |
x |
= |
10 |
Comprobación |
2(10)-15 |
= |
8(10)-75 |
20-15 |
= |
80-75 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 83 | ||
7x+9 |
= |
-3x+19 |
7x+3x |
= |
19-9 |
10x |
= |
10 |
x |
= |
10/10 |
x |
= |
1 |
Comprobación |
7(1)+9 |
= |
-3(1)+19 |
7+9 |
= |
-3+19 |
16 |
= |
16 |
| www.educa.mx |
| Ejercicio 84 | ||
3x+3 |
= |
5x+7 |
3x-5x |
= |
7-3 |
-2x |
= |
4 |
x |
= |
4/-2 |
x |
= |
-2 |
Comprobación |
3(-2)+3 |
= |
5(-2)+7 |
-6+3 |
= |
-10+7 |
-3 |
= |
-3 |
| www.educa.mx |
| Ejercicio 85 | ||
-10x-7 |
= |
-13x-1 |
-10x+13x |
= |
-1+7 |
3x |
= |
6 |
x |
= |
6/3 |
x |
= |
2 |
Comprobación |
-10(2)-7 |
= |
-13(2)-1 |
-20-7 |
= |
-26-1 |
-27 |
= |
-27 |
| www.educa.mx |
| Ejercicio 86 | ||
12x+12 |
= |
13x+1 |
12x-13x |
= |
1-12 |
-x |
= |
-11 |
x |
= |
-11/-1 |
x |
= |
11 |
Comprobación |
12(11)+12 |
= |
13(11)+1 |
132+12 |
= |
143+1 |
144 |
= |
144 |
| www.educa.mx |
| Ejercicio 87 | ||
-7x-10 |
= |
13x-170 |
-7x-13x |
= |
-170+10 |
-20x |
= |
-160 |
x |
= |
-160/-20 |
x |
= |
8 |
Comprobación |
-7(8)-10 |
= |
13(8)-170 |
-56-10 |
= |
104-170 |
-66 |
= |
-66 |
| www.educa.mx |
| Ejercicio 88 | ||
10x+6 |
= |
x+6 |
10x-x |
= |
6-6 |
9x |
= |
0 |
x |
= |
0/9 |
x |
= |
0 |
Comprobación |
10(0)+6 |
= |
(0)+6 |
0+6 |
= |
0+6 |
6 |
= |
6 |
| www.educa.mx |
| Ejercicio 89 | ||
-11x+10 |
= |
-2x-80 |
-11x+2x |
= |
-80-10 |
-9x |
= |
-90 |
x |
= |
-90/-9 |
x |
= |
10 |
Comprobación |
-11(10)+10 |
= |
-2(10)-80 |
-110+10 |
= |
-20-80 |
-100 |
= |
-100 |
| www.educa.mx |
| Ejercicio 90 | ||
2x+3 |
= |
-10x+15 |
2x+10x |
= |
15-3 |
12x |
= |
12 |
x |
= |
12/12 |
x |
= |
1 |
Comprobación |
2(1)+3 |
= |
-10(1)+15 |
2+3 |
= |
-10+15 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 91 | ||
-6x-1 |
= |
-10x-41 |
-6x+10x |
= |
-41+1 |
4x |
= |
-40 |
x |
= |
-40/4 |
x |
= |
-10 |
Comprobación |
-6(-10)-1 |
= |
-10(-10)-41 |
60-1 |
= |
100-41 |
59 |
= |
59 |
| www.educa.mx |
| Ejercicio 92 | ||
13x+10 |
= |
2x+131 |
13x-2x |
= |
131-10 |
11x |
= |
121 |
x |
= |
121/11 |
x |
= |
11 |
Comprobación |
13(11)+10 |
= |
2(11)+131 |
143+10 |
= |
22+131 |
153 |
= |
153 |
| www.educa.mx |
| Ejercicio 93 | ||
-14x+4 |
= |
14x-80 |
-14x-14x |
= |
-80-4 |
-28x |
= |
-84 |
x |
= |
-84/-28 |
x |
= |
3 |
Comprobación |
-14(3)+4 |
= |
14(3)-80 |
-42+4 |
= |
42-80 |
-38 |
= |
-38 |
| www.educa.mx |
| Ejercicio 94 | ||
-7x-5 |
= |
-12x+55 |
-7x+12x |
= |
55+5 |
5x |
= |
60 |
x |
= |
60/5 |
x |
= |
12 |
Comprobación |
-7(12)-5 |
= |
-12(12)+55 |
-84-5 |
= |
-144+55 |
-89 |
= |
-89 |
| www.educa.mx |
| Ejercicio 95 | ||
-2x-1 |
= |
-11x-118 |
-2x+11x |
= |
-118+1 |
9x |
= |
-117 |
x |
= |
-117/9 |
x |
= |
-13 |
Comprobación |
-2(-13)-1 |
= |
-11(-13)-118 |
26-1 |
= |
143-118 |
25 |
= |
25 |
| www.educa.mx |
| Ejercicio 96 | ||
-13x+3 |
= |
12x+178 |
-13x-12x |
= |
178-3 |
-25x |
= |
175 |
x |
= |
175/-25 |
x |
= |
-7 |
Comprobación |
-13(-7)+3 |
= |
12(-7)+178 |
91+3 |
= |
-84+178 |
94 |
= |
94 |
| www.educa.mx |
| Ejercicio 97 | ||
9x+2 |
= |
2x+2 |
9x-2x |
= |
2-2 |
7x |
= |
0 |
x |
= |
0/7 |
x |
= |
0 |
Comprobación |
9(0)+2 |
= |
2(0)+2 |
0+2 |
= |
0+2 |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 98 | ||
14x+11 |
= |
2x+143 |
14x-2x |
= |
143-11 |
12x |
= |
132 |
x |
= |
132/12 |
x |
= |
11 |
Comprobación |
14(11)+11 |
= |
2(11)+143 |
154+11 |
= |
22+143 |
165 |
= |
165 |
| www.educa.mx |
| Ejercicio 99 | ||
5x-2 |
= |
-15x-42 |
5x+15x |
= |
-42+2 |
20x |
= |
-40 |
x |
= |
-40/20 |
x |
= |
-2 |
Comprobación |
5(-2)-2 |
= |
-15(-2)-42 |
-10-2 |
= |
30-42 |
-12 |
= |
-12 |
| www.educa.mx |
| Ejercicio 100 | ||
2x+6 |
= |
11x-12 |
2x-11x |
= |
-12-6 |
-9x |
= |
-18 |
x |
= |
-18/-9 |
x |
= |
2 |
Comprobación |
2(2)+6 |
= |
11(2)-12 |
4+6 |
= |
22-12 |
10 |
= |
10 |
| www.educa.mx |
| Ejercicio 101 | ||
-11x-10 |
= |
7x+62 |
-11x-7x |
= |
62+10 |
-18x |
= |
72 |
x |
= |
72/-18 |
x |
= |
-4 |
Comprobación |
-11(-4)-10 |
= |
7(-4)+62 |
44-10 |
= |
-28+62 |
34 |
= |
34 |
| www.educa.mx |
| Ejercicio 102 | ||
10x-6 |
= |
-12x+16 |
10x+12x |
= |
16+6 |
22x |
= |
22 |
x |
= |
22/22 |
x |
= |
1 |
Comprobación |
10(1)-6 |
= |
-12(1)+16 |
10-6 |
= |
-12+16 |
4 |
= |
4 |
| www.educa.mx |
| Ejercicio 103 | ||
-5x-8 |
= |
6x-118 |
-5x-6x |
= |
-118+8 |
-11x |
= |
-110 |
x |
= |
-110/-11 |
x |
= |
10 |
Comprobación |
-5(10)-8 |
= |
6(10)-118 |
-50-8 |
= |
60-118 |
-58 |
= |
-58 |
| www.educa.mx |
| Ejercicio 104 | ||
-10x+2 |
= |
-7x+20 |
-10x+7x |
= |
20-2 |
-3x |
= |
18 |
x |
= |
18/-3 |
x |
= |
-6 |
Comprobación |
-10(-6)+2 |
= |
-7(-6)+20 |
60+2 |
= |
42+20 |
62 |
= |
62 |
| www.educa.mx |
| Ejercicio 105 | ||
-15x-10 |
= |
9x-130 |
-15x-9x |
= |
-130+10 |
-24x |
= |
-120 |
x |
= |
-120/-24 |
x |
= |
5 |
Comprobación |
-15(5)-10 |
= |
9(5)-130 |
-75-10 |
= |
45-130 |
-85 |
= |
-85 |
| www.educa.mx |
| Ejercicio 106 | ||
x+14 |
= |
3x+20 |
x-3x |
= |
20-14 |
-2x |
= |
6 |
x |
= |
6/-2 |
x |
= |
-3 |
Comprobación |
-3+14 |
= |
3(-3)+20 |
-3+14 |
-9+20 | |
11 |
= |
11 |
| www.educa.mx |
| Ejercicio 107 | ||
11x-4 |
= |
2x-67 |
11x-2x |
= |
-67+4 |
9x |
= |
-63 |
x |
= |
-63/9 |
x |
= |
-7 |
Comprobación |
11(-7)-4 |
= |
2(-7)-67 |
-77-4 |
= |
-14-67 |
-81 |
= |
-81 |
| www.educa.mx |
| Ejercicio 108 | ||
8x+15 |
= |
14x+3 |
8x-14x |
= |
3-15 |
-6x |
= |
-12 |
x |
= |
-12/-6 |
x |
= |
2 |
Comprobación |
8(2)+15 |
= |
14(2)+3 |
16+15 |
= |
28+3 |
31 |
= |
31 |
| www.educa.mx |
| Ejercicio 109 | ||
-15x+3 |
= |
-11x+51 |
-15x+11x |
= |
51-3 |
-4x |
= |
48 |
x |
= |
48/-4 |
x |
= |
-12 |
Comprobación |
-15(-12)+3 |
= |
-11(-12)+51 |
180+3 |
= |
132+51 |
183 |
= |
183 |
| www.educa.mx |
| Ejercicio 110 | ||
-11x+12 |
= |
2x+116 |
-11x-2x |
= |
116-12 |
-13x |
= |
104 |
x |
= |
104/-13 |
x |
= |
-8 |
Comprobación |
-11(-8)+12 |
= |
2(-8)+116 |
88+12 |
= |
-16+116 |
100 |
= |
100 |
| www.educa.mx |
| Ejercicio 111 | ||
-13x-3 |
= |
3x-35 |
-13x-3x |
= |
-35+3 |
-16x |
= |
-32 |
x |
= |
-32/-16 |
x |
= |
2 |
Comprobación |
-13(2)-3 |
= |
3(2)-35 |
-26-3 |
= |
6-35 |
-29 |
= |
-29 |
| www.educa.mx |
| Ejercicio 112 | ||
10x-13 |
= |
2x+11 |
10x-2x |
= |
11+13 |
8x |
= |
24 |
x |
= |
24/8 |
x |
= |
3 |
Comprobación |
10(3)-13 |
= |
2(3)+11 |
30-13 |
= |
6+11 |
17 |
= |
17 |
| www.educa.mx |
| Ejercicio 113 | ||
-2x+10 |
= |
-5x-2 |
-2x+5x |
= |
-2-10 |
3x |
= |
-12 |
x |
= |
-12/3 |
x |
= |
-4 |
Comprobación |
-2(-4)+10 |
= |
-5(-4)-2 |
8+10 |
= |
20-2 |
18 |
= |
18 |
| www.educa.mx |
| Ejercicio 114 | ||
6x+5 |
= |
2x-47 |
6x-2x |
= |
-47-5 |
4x |
= |
-52 |
x |
= |
-52/4 |
x |
= |
-13 |
Comprobación |
6(-13)+5 |
= |
2(-13)-47 |
-78+5 |
= |
-26-47 |
-73 |
= |
-73 |
| www.educa.mx |
| Ejercicio 115 | ||
4x-11 |
= |
-3x-67 |
4x+3x |
= |
-67+11 |
7x |
= |
-56 |
x |
= |
-56/7 |
x |
= |
-8 |
Comprobación |
4(-8)-11 |
= |
-3(-8)-67 |
-32-11 |
= |
24-67 |
-43 |
= |
-43 |
| www.educa.mx |
| Ejercicio 116 | ||
-5x-1 |
= |
x-55 |
-5x-x |
= |
-55+1 |
-6x |
= |
-54 |
x |
= |
-54/-6 |
x |
= |
9 |
Comprobación |
-5(9)-1 |
= |
(9)-55 |
-45-1 |
= |
9-55 |
-46 |
= |
-46 |
| www.educa.mx |
| Ejercicio 117 | ||
10x-9 |
= |
12x+1 |
10x-12x |
= |
1+9 |
-2x |
= |
10 |
x |
= |
10/-2 |
x |
= |
-5 |
Comprobación |
10(-5)-9 |
= |
12(-5)+1 |
-50-9 |
= |
-60+1 |
-59 |
= |
-59 |
| www.educa.mx |
| Ejercicio 118 | ||
-10x+3 |
= |
-7x-15 |
-10x+7x |
= |
-15-3 |
-3x |
= |
-18 |
x |
= |
-18/-3 |
x |
= |
6 |
Comprobación |
-10(6)+3 |
= |
-7(6)-15 |
-60+3 |
= |
-42-15 |
-57 |
= |
-57 |
| www.educa.mx |
| Ejercicio 119 | ||
7x-12 |
= |
-x-12 |
7x+x |
= |
-12+12 |
8x |
= |
0 |
x |
= |
0/8 |
x |
= |
0 |
Comprobación |
7(0)-12 |
= |
-(0)-12 |
0-12 |
= |
0-12 |
-12 |
= |
-12 |
| www.educa.mx |
| Ejercicio 120 | ||
-2x+7 |
= |
7x+7 |
-2x-7x |
= |
7-7 |
-9x |
= |
0 |
x |
= |
0/-9 |
x |
= |
0 |
Comprobación |
-2(0)+7 |
= |
7(0)+7 |
0+7 |
= |
0+7 |
7 |
= |
7 |
| www.educa.mx |
| Ejercicio 121 | ||
13x-12 |
= |
14x-20 |
13x-14x |
= |
-20+12 |
-x |
= |
-8 |
x |
= |
-8/-1 |
x |
= |
8 |
Comprobación |
13(8)-12 |
= |
14(8)-20 |
104-12 |
= |
112-20 |
92 |
= |
92 |
| www.educa.mx |
| Ejercicio 122 | ||
14x+6 |
= |
-2x-202 |
14x+2x |
= |
-202-6 |
16x |
= |
-208 |
x |
= |
-208/16 |
x |
= |
-13 |
Comprobación |
14(-13)+6 |
= |
-2(-13)-202 |
-182+6 |
= |
26-202 |
-176 |
= |
-176 |
| www.educa.mx |
| Ejercicio 123 | ||
-15x-12 |
= |
-7x+108 |
-15x+7x |
= |
108+12 |
-8x |
= |
120 |
x |
= |
120/-8 |
x |
= |
-15 |
Comprobación |
-15(-15)-12 |
= |
-7(-15)+108 |
225-12 |
= |
105+108 |
213 |
= |
213 |
| www.educa.mx |
| Ejercicio 124 | ||
-6x+4 |
= |
11x+191 |
-6x-11x |
= |
191-4 |
-17x |
= |
187 |
x |
= |
187/-17 |
x |
= |
-11 |
Comprobación |
-6(-11)+4 |
= |
11(-11)+191 |
66+4 |
= |
-121+191 |
70 |
= |
70 |
| www.educa.mx |
| Ejercicio 125 | ||
-5x-10 |
= |
x-64 |
-5x-x |
= |
-64+10 |
-6x |
= |
-54 |
x |
= |
-54/-6 |
x |
= |
9 |
Comprobación |
-5(9)-10 |
= |
(9)-64 |
-45-10 |
= |
9-64 |
-55 |
= |
-55 |
| www.educa.mx |
| Ejercicio 126 | ||
-7x-5 |
= |
-10x+13 |
-7x+10x |
= |
13+5 |
3x |
= |
18 |
x |
= |
18/3 |
x |
= |
6 |
Comprobación |
-7(6)-5 |
= |
-10(6)+13 |
-42-5 |
= |
-60+13 |
-47 |
= |
-47 |
| www.educa.mx |
| Ejercicio 127 | ||
-2x-9 |
= |
-13x+57 |
-2x+13x |
= |
57+9 |
11x |
= |
66 |
x |
= |
66/11 |
x |
= |
6 |
Comprobación |
-2(6)-9 |
= |
-13(6)+57 |
-12-9 |
= |
-78+57 |
-21 |
= |
-21 |
| www.educa.mx |
| Ejercicio 128 | ||
-x-5 |
= |
-7x-77 |
-x+7x |
= |
-77+5 |
6x |
= |
-72 |
x |
= |
-72/6 |
x |
= |
-12 |
Comprobación |
-(-12)-5 |
= |
-7(-12)-77 |
12-5 |
= |
84-77 |
7 |
= |
7 |
| www.educa.mx |
| Ejercicio 129 | ||
10x-6 |
= |
-7x-193 |
10x+7x |
= |
-193+6 |
17x |
= |
-187 |
x |
= |
-187/17 |
x |
= |
-11 |
Comprobación |
10(-11)-6 |
= |
-7(-11)-193 |
-110-6 |
= |
77-193 |
-116 |
= |
-116 |
| www.educa.mx |
| Ejercicio 130 | ||
-2x-9 |
= |
-7x+31 |
-2x+7x |
= |
31+9 |
5x |
= |
40 |
x |
= |
40/5 |
x |
= |
8 |
Comprobación |
-2(8)-9 |
= |
-7(8)+31 |
-16-9 |
= |
-56+31 |
-25 |
= |
-25 |
| www.educa.mx |
| Ejercicio 131 | ||
x-7 |
= |
-2x+20 |
x+2x |
= |
20+7 |
3x |
= |
27 |
x |
= |
27/3 |
x |
= |
9 |
Comprobación |
9-7 |
= |
-2(9)+20 |
9-7 |
-18+20 | |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 132 | ||
6x-2 |
= |
12x-80 |
6x-12x |
= |
-80+2 |
-6x |
= |
-78 |
x |
= |
-78/-6 |
x |
= |
13 |
Comprobación |
6(13)-2 |
= |
12(13)-80 |
78-2 |
= |
156-80 |
76 |
= |
76 |
| www.educa.mx |
| Ejercicio 133 | ||
3x-9 |
= |
-9x+3 |
3x+9x |
= |
3+9 |
12x |
= |
12 |
x |
= |
12/12 |
x |
= |
1 |
Comprobación |
3(1)-9 |
= |
-9(1)+3 |
3-9 |
= |
-9+3 |
-6 |
= |
-6 |
| www.educa.mx |
| Ejercicio 134 | ||
-12x+11 |
= |
x+154 |
-12x-x |
= |
154-11 |
-13x |
= |
143 |
x |
= |
143/-13 |
x |
= |
-11 |
Comprobación |
-12(-11)+11 |
= |
(-11)+154 |
132+11 |
= |
-11+154 |
143 |
= |
143 |
| www.educa.mx |
| Ejercicio 135 | ||
-11x-8 |
= |
-x-48 |
-11x+x |
= |
-48+8 |
-10x |
= |
-40 |
x |
= |
-40/-10 |
x |
= |
4 |
Comprobación |
-11(4)-8 |
= |
-(4)-48 |
-44-8 |
= |
-4-48 |
-52 |
= |
-52 |
| www.educa.mx |
| Ejercicio 136 | ||
10x+15 |
= |
-13x-307 |
10x+13x |
= |
-307-15 |
23x |
= |
-322 |
x |
= |
-322/23 |
x |
= |
-14 |
Comprobación |
10(-14)+15 |
= |
-13(-14)-307 |
-140+15 |
= |
182-307 |
-125 |
= |
-125 |
| www.educa.mx |
| Ejercicio 137 | ||
-13x+2 |
= |
6x+211 |
-13x-6x |
= |
211-2 |
-19x |
= |
209 |
x |
= |
209/-19 |
x |
= |
-11 |
Comprobación |
-13(-11)+2 |
= |
6(-11)+211 |
143+2 |
= |
-66+211 |
145 |
= |
145 |
| www.educa.mx |
| Ejercicio 138 | ||
8x-6 |
= |
2x+54 |
8x-2x |
= |
54+6 |
6x |
= |
60 |
x |
= |
60/6 |
x |
= |
10 |
Comprobación |
8(10)-6 |
= |
2(10)+54 |
80-6 |
= |
20+54 |
74 |
= |
74 |
| www.educa.mx |
| Ejercicio 139 | ||
10x-11 |
= |
6x-35 |
10x-6x |
= |
-35+11 |
4x |
= |
-24 |
x |
= |
-24/4 |
x |
= |
-6 |
Comprobación |
10(-6)-11 |
= |
6(-6)-35 |
-60-11 |
= |
-36-35 |
-71 |
= |
-71 |
| www.educa.mx |
| Ejercicio 140 | ||
-9x+14 |
= |
-5x-34 |
-9x+5x |
= |
-34-14 |
-4x |
= |
-48 |
x |
= |
-48/-4 |
x |
= |
12 |
Comprobación |
-9(12)+14 |
= |
-5(12)-34 |
-108+14 |
= |
-60-34 |
-94 |
= |
-94 |
| www.educa.mx |
| Ejercicio 141 | ||
13x+9 |
= |
2x+42 |
13x-2x |
= |
42-9 |
11x |
= |
33 |
x |
= |
33/11 |
x |
= |
3 |
Comprobación |
13(3)+9 |
= |
2(3)+42 |
39+9 |
= |
6+42 |
48 |
= |
48 |
| www.educa.mx |
| Ejercicio 142 | ||
-9x-1 |
= |
-15x-1 |
-9x+15x |
= |
-1+1 |
6x |
= |
0 |
x |
= |
0/6 |
x |
= |
0 |
Comprobación |
-9(0)-1 |
= |
-15(0)-1 |
0-1 |
= |
0-1 |
-1 |
= |
-1 |
| www.educa.mx |
| Ejercicio 143 | ||
-7x-15 |
= |
-15x+73 |
-7x+15x |
= |
73+15 |
8x |
= |
88 |
x |
= |
88/8 |
x |
= |
11 |
Comprobación |
-7(11)-15 |
= |
-15(11)+73 |
-77-15 |
= |
-165+73 |
-92 |
= |
-92 |
| www.educa.mx |
| Ejercicio 144 | ||
7x-11 |
= |
-8x-86 |
7x+8x |
= |
-86+11 |
15x |
= |
-75 |
x |
= |
-75/15 |
x |
= |
-5 |
Comprobación |
7(-5)-11 |
= |
-8(-5)-86 |
-35-11 |
= |
40-86 |
-46 |
= |
-46 |
| www.educa.mx |
| Ejercicio 145 | ||
4x-5 |
= |
10x-5 |
4x-10x |
= |
-5+5 |
-6x |
= |
0 |
x |
= |
0/-6 |
x |
= |
0 |
Comprobación |
4(0)-5 |
= |
10(0)-5 |
0-5 |
= |
0-5 |
-5 |
= |
-5 |
| www.educa.mx |
| Ejercicio 146 | ||
13x-12 |
= |
-2x+33 |
13x+2x |
= |
33+12 |
15x |
= |
45 |
x |
= |
45/15 |
x |
= |
3 |
Comprobación |
13(3)-12 |
= |
-2(3)+33 |
39-12 |
= |
-6+33 |
27 |
= |
27 |
| www.educa.mx |
| Ejercicio 147 | ||
-10x-14 |
= |
-2x+90 |
-10x+2x |
= |
90+14 |
-8x |
= |
104 |
x |
= |
104/-8 |
x |
= |
-13 |
Comprobación |
-10(-13)-14 |
= |
-2(-13)+90 |
130-14 |
= |
26+90 |
116 |
= |
116 |
| www.educa.mx |
| Ejercicio 148 | ||
2x+4 |
= |
11x-104 |
2x-11x |
= |
-104-4 |
-9x |
= |
-108 |
x |
= |
-108/-9 |
x |
= |
12 |
Comprobación |
2(12)+4 |
= |
11(12)-104 |
24+4 |
= |
132-104 |
28 |
= |
28 |
| www.educa.mx |
| Ejercicio 149 | ||
14x+2 |
= |
8x+8 |
14x-8x |
= |
8-2 |
6x |
= |
6 |
x |
= |
6/6 |
x |
= |
1 |
Comprobación |
14(1)+2 |
= |
8(1)+8 |
14+2 |
= |
8+8 |
16 |
= |
16 |
| www.educa.mx |
| Ejercicio 150 | ||
12x+5 |
= |
8x+49 |
12x-8x |
= |
49-5 |
4x |
= |
44 |
x |
= |
44/4 |
x |
= |
11 |
Comprobación |
12(11)+5 |
= |
8(11)+49 |
132+5 |
= |
88+49 |
137 |
= |
137 |
| www.educa.mx |
| Ejercicio 151 | ||
8x+12 |
= |
-10x-96 |
8x+10x |
= |
-96-12 |
18x |
= |
-108 |
x |
= |
-108/18 |
x |
= |
-6 |
Comprobación |
8(-6)+12 |
= |
-10(-6)-96 |
-48+12 |
= |
60-96 |
-36 |
= |
-36 |
| www.educa.mx |
| Ejercicio 152 | ||
-8x+9 |
= |
-9x-1 |
-8x+9x |
= |
-1-9 |
x |
= |
-10 |
Comprobación |
-8(-10)+9 |
= |
-9(-10)-1 |
80+9 |
= |
90-1 |
89 |
= |
89 |
| www.educa.mx |
| Ejercicio 153 | ||
-9x-4 |
= |
-3x+68 |
-9x+3x |
= |
68+4 |
-6x |
= |
72 |
x |
= |
72/-6 |
x |
= |
-12 |
Comprobación |
-9(-12)-4 |
= |
-3(-12)+68 |
108-4 |
= |
36+68 |
104 |
= |
104 |
| www.educa.mx |
| Ejercicio 154 | ||
4x+7 |
= |
-13x-78 |
4x+13x |
= |
-78-7 |
17x |
= |
-85 |
x |
= |
-85/17 |
x |
= |
-5 |
Comprobación |
4(-5)+7 |
= |
-13(-5)-78 |
-20+7 |
= |
65-78 |
-13 |
= |
-13 |
| www.educa.mx |
| Ejercicio 155 | ||
-12x+10 |
= |
12x+34 |
-12x-12x |
= |
34-10 |
-24x |
= |
24 |
x |
= |
24/-24 |
x |
= |
-1 |
Comprobación |
-12(-1)+10 |
= |
12(-1)+34 |
12+10 |
= |
-12+34 |
22 |
= |
22 |
| www.educa.mx |
| Ejercicio 156 | ||
13x+6 |
= |
8x-44 |
13x-8x |
= |
-44-6 |
5x |
= |
-50 |
x |
= |
-50/5 |
x |
= |
-10 |
Comprobación |
13(-10)+6 |
= |
8(-10)-44 |
-130+6 |
= |
-80-44 |
-124 |
= |
-124 |
| www.educa.mx |
| Ejercicio 157 | ||
13x+6 |
= |
7x-60 |
13x-7x |
= |
-60-6 |
6x |
= |
-66 |
x |
= |
-66/6 |
x |
= |
-11 |
Comprobación |
13(-11)+6 |
= |
7(-11)-60 |
-143+6 |
= |
-77-60 |
-137 |
= |
-137 |
| www.educa.mx |
| Ejercicio 158 | ||
-12x-7 |
= |
-13x-8 |
-12x+13x |
= |
-8+7 |
x |
= |
-1 |
Comprobación |
-12(-1)-7 |
= |
-13(-1)-8 |
12-7 |
= |
13-8 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 159 | ||
-3x-7 |
= |
-5x+15 |
-3x+5x |
= |
15+7 |
2x |
= |
22 |
x |
= |
22/2 |
x |
= |
11 |
Comprobación |
-3(11)-7 |
= |
-5(11)+15 |
-33-7 |
= |
-55+15 |
-40 |
= |
-40 |
| www.educa.mx |
| Ejercicio 160 | ||
-8x-13 |
= |
-3x+22 |
-8x+3x |
= |
22+13 |
-5x |
= |
35 |
x |
= |
35/-5 |
x |
= |
-7 |
Comprobación |
-8(-7)-13 |
= |
-3(-7)+22 |
56-13 |
= |
21+22 |
43 |
= |
43 |
| www.educa.mx |
| Ejercicio 161 | ||
5x-12 |
= |
-10x-72 |
5x+10x |
= |
-72+12 |
15x |
= |
-60 |
x |
= |
-60/15 |
x |
= |
-4 |
Comprobación |
5(-4)-12 |
= |
-10(-4)-72 |
-20-12 |
= |
40-72 |
-32 |
= |
-32 |
| www.educa.mx |
| Ejercicio 162 | ||
12x-12 |
= |
-4x-76 |
12x+4x |
= |
-76+12 |
16x |
= |
-64 |
x |
= |
-64/16 |
x |
= |
-4 |
Comprobación |
12(-4)-12 |
= |
-4(-4)-76 |
-48-12 |
= |
16-76 |
-60 |
= |
-60 |
| www.educa.mx |
| Ejercicio 163 | ||
10x-9 |
= |
4x+45 |
10x-4x |
= |
45+9 |
6x |
= |
54 |
x |
= |
54/6 |
x |
= |
9 |
Comprobación |
10(9)-9 |
= |
4(9)+45 |
90-9 |
= |
36+45 |
81 |
= |
81 |
| www.educa.mx |
| Ejercicio 164 | ||
-14x-5 |
= |
2x-5 |
-14x-2x |
= |
-5+5 |
-16x |
= |
0 |
x |
= |
0/-16 |
x |
= |
0 |
Comprobación |
-14(0)-5 |
= |
2(0)-5 |
0-5 |
= |
0-5 |
-5 |
= |
-5 |
| www.educa.mx |
| Ejercicio 165 | ||
6x+11 |
= |
-11x-108 |
6x+11x |
= |
-108-11 |
17x |
= |
-119 |
x |
= |
-119/17 |
x |
= |
-7 |
Comprobación |
6(-7)+11 |
= |
-11(-7)-108 |
-42+11 |
= |
77-108 |
-31 |
= |
-31 |
| www.educa.mx |
| Ejercicio 166 | ||
-15x+7 |
= |
-x+189 |
-15x+x |
= |
189-7 |
-14x |
= |
182 |
x |
= |
182/-14 |
x |
= |
-13 |
Comprobación |
-15(-13)+7 |
= |
-(-13)+189 |
195+7 |
= |
13+189 |
202 |
= |
202 |
| www.educa.mx |
| Ejercicio 167 | ||
11x+11 |
= |
3x+27 |
11x-3x |
= |
27-11 |
8x |
= |
16 |
x |
= |
16/8 |
x |
= |
2 |
Comprobación |
11(2)+11 |
= |
3(2)+27 |
22+11 |
= |
6+27 |
33 |
= |
33 |
| www.educa.mx |
| Ejercicio 168 | ||
-10x-11 |
= |
5x+109 |
-10x-5x |
= |
109+11 |
-15x |
= |
120 |
x |
= |
120/-15 |
x |
= |
-8 |
Comprobación |
-10(-8)-11 |
= |
5(-8)+109 |
80-11 |
= |
-40+109 |
69 |
= |
69 |
| www.educa.mx |
| Ejercicio 169 | ||
-10x-10 |
= |
-9x-22 |
-10x+9x |
= |
-22+10 |
-x |
= |
-12 |
x |
= |
-12/-1 |
x |
= |
12 |
Comprobación |
-10(12)-10 |
= |
-9(12)-22 |
-120-10 |
= |
-108-22 |
-130 |
= |
-130 |
| www.educa.mx |
| Ejercicio 170 | ||
-10x+6 |
= |
-7x-3 |
-10x+7x |
= |
-3-6 |
-3x |
= |
-9 |
x |
= |
-9/-3 |
x |
= |
3 |
Comprobación |
-10(3)+6 |
= |
-7(3)-3 |
-30+6 |
= |
-21-3 |
-24 |
= |
-24 |
| www.educa.mx |
| Ejercicio 171 | ||
11x+11 |
= |
-15x-249 |
11x+15x |
= |
-249-11 |
26x |
= |
-260 |
x |
= |
-260/26 |
x |
= |
-10 |
Comprobación |
11(-10)+11 |
= |
-15(-10)-249 |
-110+11 |
= |
150-249 |
-99 |
= |
-99 |
| www.educa.mx |
| Ejercicio 172 | ||
-6x+2 |
= |
9x+152 |
-6x-9x |
= |
152-2 |
-15x |
= |
150 |
x |
= |
150/-15 |
x |
= |
-10 |
Comprobación |
-6(-10)+2 |
= |
9(-10)+152 |
60+2 |
= |
-90+152 |
62 |
= |
62 |
| www.educa.mx |
| Ejercicio 173 | ||
-8x-1 |
= |
5x-14 |
-8x-5x |
= |
-14+1 |
-13x |
= |
-13 |
x |
= |
-13/-13 |
x |
= |
1 |
Comprobación |
-8(1)-1 |
= |
5(1)-14 |
-8-1 |
= |
5-14 |
-9 |
= |
-9 |
| www.educa.mx |
| Ejercicio 174 | ||
9x+2 |
= |
12x+38 |
9x-12x |
= |
38-2 |
-3x |
= |
36 |
x |
= |
36/-3 |
x |
= |
-12 |
Comprobación |
9(-12)+2 |
= |
12(-12)+38 |
-108+2 |
= |
-144+38 |
-106 |
= |
-106 |
| www.educa.mx |
| Ejercicio 175 | ||
-15x-4 |
= |
-x-172 |
-15x+x |
= |
-172+4 |
-14x |
= |
-168 |
x |
= |
-168/-14 |
x |
= |
12 |
Comprobación |
-15(12)-4 |
= |
-(12)-172 |
-180-4 |
= |
-12-172 |
-184 |
= |
-184 |
| www.educa.mx |
| Ejercicio 176 | ||
-3x+6 |
= |
10x+188 |
-3x-10x |
= |
188-6 |
-13x |
= |
182 |
x |
= |
182/-13 |
x |
= |
-14 |
Comprobación |
-3(-14)+6 |
= |
10(-14)+188 |
42+6 |
= |
-140+188 |
48 |
= |
48 |
| www.educa.mx |
| Ejercicio 177 | ||
8x+4 |
= |
-9x-13 |
8x+9x |
= |
-13-4 |
17x |
= |
-17 |
x |
= |
-17/17 |
x |
= |
-1 |
Comprobación |
8(-1)+4 |
= |
-9(-1)-13 |
-8+4 |
= |
9-13 |
-4 |
= |
-4 |
| www.educa.mx |
| Ejercicio 178 | ||
12x-2 |
= |
4x+94 |
12x-4x |
= |
94+2 |
8x |
= |
96 |
x |
= |
96/8 |
x |
= |
12 |
Comprobación |
12(12)-2 |
= |
4(12)+94 |
144-2 |
= |
48+94 |
142 |
= |
142 |
| www.educa.mx |
| Ejercicio 179 | ||
-x+7 |
= |
-7x+31 |
-x+7x |
= |
31-7 |
6x |
= |
24 |
x |
= |
24/6 |
x |
= |
4 |
Comprobación |
-(4)+7 |
= |
-7(4)+31 |
-4+7 |
= |
-28+31 |
3 |
= |
3 |
| www.educa.mx |
| Ejercicio 180 | ||
-6x+14 |
= |
-5x+5 |
-6x+5x |
= |
5-14 |
-x |
= |
-9 |
x |
= |
-9/-1 |
x |
= |
9 |
Comprobación |
-6(9)+14 |
= |
-5(9)+5 |
-54+14 |
= |
-45+5 |
-40 |
= |
-40 |
| www.educa.mx |
| Ejercicio 181 | ||
11x+6 |
= |
8x+15 |
11x-8x |
= |
15-6 |
3x |
= |
9 |
x |
= |
9/3 |
x |
= |
3 |
Comprobación |
11(3)+6 |
= |
8(3)+15 |
33+6 |
= |
24+15 |
39 |
= |
39 |
| www.educa.mx |
| Ejercicio 182 | ||
-2x-5 |
= |
-9x-19 |
-2x+9x |
= |
-19+5 |
7x |
= |
-14 |
x |
= |
-14/7 |
x |
= |
-2 |
Comprobación |
-2(-2)-5 |
= |
-9(-2)-19 |
4-5 |
= |
18-19 |
-1 |
= |
-1 |
| www.educa.mx |
| Ejercicio 183 | ||
8x-2 |
= |
-6x+166 |
8x+6x |
= |
166+2 |
14x |
= |
168 |
x |
= |
168/14 |
x |
= |
12 |
Comprobación |
8(12)-2 |
= |
-6(12)+166 |
96-2 |
= |
-72+166 |
94 |
= |
94 |
| www.educa.mx |
| Ejercicio 184 | ||
13x-6 |
= |
14x-15 |
13x-14x |
= |
-15+6 |
-x |
= |
-9 |
x |
= |
-9/-1 |
x |
= |
9 |
Comprobación |
13(9)-6 |
= |
14(9)-15 |
117-6 |
= |
126-15 |
111 |
= |
111 |
| www.educa.mx |
| Ejercicio 185 | ||
8x+15 |
= |
12x+19 |
8x-12x |
= |
19-15 |
-4x |
= |
4 |
x |
= |
4/-4 |
x |
= |
-1 |
Comprobación |
8(-1)+15 |
= |
12(-1)+19 |
-8+15 |
= |
-12+19 |
7 |
= |
7 |
| www.educa.mx |
| Ejercicio 186 | ||
12x+9 |
= |
6x-75 |
12x-6x |
= |
-75-9 |
6x |
= |
-84 |
x |
= |
-84/6 |
x |
= |
-14 |
Comprobación |
12(-14)+9 |
= |
6(-14)-75 |
-168+9 |
= |
-84-75 |
-159 |
= |
-159 |
| www.educa.mx |
| Ejercicio 187 | ||
4x-7 |
= |
-15x+50 |
4x+15x |
= |
50+7 |
19x |
= |
57 |
x |
= |
57/19 |
x |
= |
3 |
Comprobación |
4(3)-7 |
= |
-15(3)+50 |
12-7 |
= |
-45+50 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 188 | ||
-8x+13 |
= |
-11x-17 |
-8x+11x |
= |
-17-13 |
3x |
= |
-30 |
x |
= |
-30/3 |
x |
= |
-10 |
Comprobación |
-8(-10)+13 |
= |
-11(-10)-17 |
80+13 |
= |
110-17 |
93 |
= |
93 |
| www.educa.mx |
| Ejercicio 189 | ||
-8x+2 |
= |
-2x-34 |
-8x+2x |
= |
-34-2 |
-6x |
= |
-36 |
x |
= |
-36/-6 |
x |
= |
6 |
Comprobación |
-8(6)+2 |
= |
-2(6)-34 |
-48+2 |
= |
-12-34 |
-46 |
= |
-46 |
| www.educa.mx |
| Ejercicio 190 | ||
-10x+4 |
= |
-4x+88 |
-10x+4x |
= |
88-4 |
-6x |
= |
84 |
x |
= |
84/-6 |
x |
= |
-14 |
Comprobación |
-10(-14)+4 |
= |
-4(-14)+88 |
140+4 |
= |
56+88 |
144 |
= |
144 |
| www.educa.mx |
| Ejercicio 191 | ||
x+11 |
= |
6x-49 |
x-6x |
= |
-49-11 |
-5x |
= |
-60 |
x |
= |
-60/-5 |
x |
= |
12 |
Comprobación |
12+11 |
= |
6(12)-49 |
12+11 |
72-49 | |
23 |
= |
23 |
| www.educa.mx |
| Ejercicio 192 | ||
5x-9 |
= |
14x-36 |
5x-14x |
= |
-36+9 |
-9x |
= |
-27 |
x |
= |
-27/-9 |
x |
= |
3 |
Comprobación |
5(3)-9 |
= |
14(3)-36 |
15-9 |
= |
42-36 |
6 |
= |
6 |
| www.educa.mx |
| Ejercicio 193 | ||
14x+10 |
= |
-8x+274 |
14x+8x |
= |
274-10 |
22x |
= |
264 |
x |
= |
264/22 |
x |
= |
12 |
Comprobación |
14(12)+10 |
= |
-8(12)+274 |
168+10 |
= |
-96+274 |
178 |
= |
178 |
| www.educa.mx |
| Ejercicio 194 | ||
-7x-2 |
= |
-x+46 |
-7x+x |
= |
46+2 |
-6x |
= |
48 |
x |
= |
48/-6 |
x |
= |
-8 |
Comprobación |
-7(-8)-2 |
= |
-(-8)+46 |
56-2 |
= |
8+46 |
54 |
= |
54 |
| www.educa.mx |
| Ejercicio 195 | ||
-14x+15 |
= |
-10x-37 |
-14x+10x |
= |
-37-15 |
-4x |
= |
-52 |
x |
= |
-52/-4 |
x |
= |
13 |
Comprobación |
-14(13)+15 |
= |
-10(13)-37 |
-182+15 |
= |
-130-37 |
-167 |
= |
-167 |
| www.educa.mx |
| Ejercicio 196 | ||
x+15 |
= |
-10x-106 |
x+10x |
= |
-106-15 |
11x |
= |
-121 |
x |
= |
-121/11 |
x |
= |
-11 |
Comprobación |
-11+15 |
= |
-10(-11)-106 |
-11+15 |
110-106 | |
4 |
= |
4 |
| www.educa.mx |
| Ejercicio 197 | ||
x+14 |
= |
12x+168 |
x-12x |
= |
168-14 |
-11x |
= |
154 |
x |
= |
154/-11 |
x |
= |
-14 |
Comprobación |
-14+14 |
= |
12(-14)+168 |
-14+14 |
-168+168 | |
0 |
= |
0 |
| www.educa.mx |
| Ejercicio 198 | ||
-15x+7 |
= |
9x-161 |
-15x-9x |
= |
-161-7 |
-24x |
= |
-168 |
x |
= |
-168/-24 |
x |
= |
7 |
Comprobación |
-15(7)+7 |
= |
9(7)-161 |
-105+7 |
= |
63-161 |
-98 |
= |
-98 |
| www.educa.mx |
| Ejercicio 199 | ||
2x-12 |
= |
5x-33 |
2x-5x |
= |
-33+12 |
-3x |
= |
-21 |
x |
= |
-21/-3 |
x |
= |
7 |
Comprobación |
2(7)-12 |
= |
5(7)-33 |
14-12 |
= |
35-33 |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 200 | ||
-11x-15 |
= |
-x-115 |
-11x+x |
= |
-115+15 |
-10x |
= |
-100 |
x |
= |
-100/-10 |
x |
= |
10 |
Comprobación |
-11(10)-15 |
= |
-(10)-115 |
-110-15 |
= |
-10-115 |
-125 |
= |
-125 |
| www.educa.mx |
| Ejercicio 201 | ||
-13x-10 |
= |
5x+98 |
-13x-5x |
= |
98+10 |
-18x |
= |
108 |
x |
= |
108/-18 |
x |
= |
-6 |
Comprobación |
-13(-6)-10 |
= |
5(-6)+98 |
78-10 |
= |
-30+98 |
68 |
= |
68 |
| www.educa.mx |
| Ejercicio 202 | ||
-11x+10 |
= |
4x-65 |
-11x-4x |
= |
-65-10 |
-15x |
= |
-75 |
x |
= |
-75/-15 |
x |
= |
5 |
Comprobación |
-11(5)+10 |
= |
4(5)-65 |
-55+10 |
= |
20-65 |
-45 |
= |
-45 |
| www.educa.mx |
| Ejercicio 203 | ||
-5x+1 |
= |
9x-97 |
-5x-9x |
= |
-97-1 |
-14x |
= |
-98 |
x |
= |
-98/-14 |
x |
= |
7 |
Comprobación |
-5(7)+1 |
= |
9(7)-97 |
-35+1 |
= |
63-97 |
-34 |
= |
-34 |
| www.educa.mx |
| Ejercicio 204 | ||
-10x-13 |
= |
9x+139 |
-10x-9x |
= |
139+13 |
-19x |
= |
152 |
x |
= |
152/-19 |
x |
= |
-8 |
Comprobación |
-10(-8)-13 |
= |
9(-8)+139 |
80-13 |
= |
-72+139 |
67 |
= |
67 |
| www.educa.mx |
| Ejercicio 205 | ||
-7x-3 |
= |
5x-51 |
-7x-5x |
= |
-51+3 |
-12x |
= |
-48 |
x |
= |
-48/-12 |
x |
= |
4 |
Comprobación |
-7(4)-3 |
= |
5(4)-51 |
-28-3 |
= |
20-51 |
-31 |
= |
-31 |
| www.educa.mx |
| Ejercicio 206 | ||
-2x+11 |
= |
6x+99 |
-2x-6x |
= |
99-11 |
-8x |
= |
88 |
x |
= |
88/-8 |
x |
= |
-11 |
Comprobación |
-2(-11)+11 |
= |
6(-11)+99 |
22+11 |
= |
-66+99 |
33 |
= |
33 |
| www.educa.mx |
| Ejercicio 207 | ||
x+1 |
= |
13x+169 |
x-13x |
= |
169-1 |
-12x |
= |
168 |
x |
= |
168/-12 |
x |
= |
-14 |
Comprobación |
-14+1 |
= |
13(-14)+169 |
-14+1 |
-182+169 | |
-13 |
= |
-13 |
| www.educa.mx |
| Ejercicio 208 | ||
9x+11 |
= |
5x+35 |
9x-5x |
= |
35-11 |
4x |
= |
24 |
x |
= |
24/4 |
x |
= |
6 |
Comprobación |
9(6)+11 |
= |
5(6)+35 |
54+11 |
= |
30+35 |
65 |
= |
65 |
| www.educa.mx |
| Ejercicio 209 | ||
-5x-2 |
= |
-7x-24 |
-5x+7x |
= |
-24+2 |
2x |
= |
-22 |
x |
= |
-22/2 |
x |
= |
-11 |
Comprobación |
-5(-11)-2 |
= |
-7(-11)-24 |
55-2 |
= |
77-24 |
53 |
= |
53 |
| www.educa.mx |
| Ejercicio 210 | ||
-5x+5 |
= |
-12x+103 |
-5x+12x |
= |
103-5 |
7x |
= |
98 |
x |
= |
98/7 |
x |
= |
14 |
Comprobación |
-5(14)+5 |
= |
-12(14)+103 |
-70+5 |
= |
-168+103 |
-65 |
= |
-65 |
| www.educa.mx |
| Ejercicio 211 | ||
5x+8 |
= |
9x-36 |
5x-9x |
= |
-36-8 |
-4x |
= |
-44 |
x |
= |
-44/-4 |
x |
= |
11 |
Comprobación |
5(11)+8 |
= |
9(11)-36 |
55+8 |
= |
99-36 |
63 |
= |
63 |
| www.educa.mx |
| Ejercicio 212 | ||
6x+12 |
= |
x-33 |
6x-x |
= |
-33-12 |
5x |
= |
-45 |
x |
= |
-45/5 |
x |
= |
-9 |
Comprobación |
6(-9)+12 |
= |
(-9)-33 |
-54+12 |
= |
-9-33 |
-42 |
= |
-42 |
| www.educa.mx |
| Ejercicio 213 | ||
-13x-5 |
= |
2x+145 |
-13x-2x |
= |
145+5 |
-15x |
= |
150 |
x |
= |
150/-15 |
x |
= |
-10 |
Comprobación |
-13(-10)-5 |
= |
2(-10)+145 |
130-5 |
= |
-20+145 |
125 |
= |
125 |
| www.educa.mx |
| Ejercicio 214 | ||
-4x-7 |
= |
-3x+5 |
-4x+3x |
= |
5+7 |
-x |
= |
12 |
x |
= |
12/-1 |
x |
= |
-12 |
Comprobación |
-4(-12)-7 |
= |
-3(-12)+5 |
48-7 |
= |
36+5 |
41 |
= |
41 |
| www.educa.mx |
| Ejercicio 215 | ||
-4x-13 |
= |
-2x-5 |
-4x+2x |
= |
-5+13 |
-2x |
= |
8 |
x |
= |
8/-2 |
x |
= |
-4 |
Comprobación |
-4(-4)-13 |
= |
-2(-4)-5 |
16-13 |
= |
8-5 |
3 |
= |
3 |
| www.educa.mx |
| Ejercicio 216 | ||
-4x-15 |
= |
-2x-27 |
-4x+2x |
= |
-27+15 |
-2x |
= |
-12 |
x |
= |
-12/-2 |
x |
= |
6 |
Comprobación |
-4(6)-15 |
= |
-2(6)-27 |
-24-15 |
= |
-12-27 |
-39 |
= |
-39 |
| www.educa.mx |
| Ejercicio 217 | ||
-x-1 |
= |
9x+149 |
-x-9x |
= |
149+1 |
-10x |
= |
150 |
x |
= |
150/-10 |
x |
= |
-15 |
Comprobación |
-(-15)-1 |
= |
9(-15)+149 |
15-1 |
= |
-135+149 |
14 |
= |
14 |
| www.educa.mx |
| Ejercicio 218 | ||
6x-6 |
= |
5x-3 |
6x-5x |
= |
-3+6 |
x |
= |
3 |
Comprobación |
6(3)-6 |
= |
5(3)-3 |
18-6 |
= |
15-3 |
12 |
= |
12 |
| www.educa.mx |
| Ejercicio 219 | ||
13x-10 |
= |
-8x+200 |
13x+8x |
= |
200+10 |
21x |
= |
210 |
x |
= |
210/21 |
x |
= |
10 |
Comprobación |
13(10)-10 |
= |
-8(10)+200 |
130-10 |
= |
-80+200 |
120 |
= |
120 |
| www.educa.mx |
| Ejercicio 220 | ||
-15x-3 |
= |
11x+231 |
-15x-11x |
= |
231+3 |
-26x |
= |
234 |
x |
= |
234/-26 |
x |
= |
-9 |
Comprobación |
-15(-9)-3 |
= |
11(-9)+231 |
135-3 |
= |
-99+231 |
132 |
= |
132 |
| www.educa.mx |
| Ejercicio 221 | ||
12x+14 |
= |
3x-4 |
12x-3x |
= |
-4-14 |
9x |
= |
-18 |
x |
= |
-18/9 |
x |
= |
-2 |
Comprobación |
12(-2)+14 |
= |
3(-2)-4 |
-24+14 |
= |
-6-4 |
-10 |
= |
-10 |
| www.educa.mx |
| Ejercicio 222 | ||
5x+5 |
= |
-9x-37 |
5x+9x |
= |
-37-5 |
14x |
= |
-42 |
x |
= |
-42/14 |
x |
= |
-3 |
Comprobación |
5(-3)+5 |
= |
-9(-3)-37 |
-15+5 |
= |
27-37 |
-10 |
= |
-10 |
| www.educa.mx |
| Ejercicio 223 | ||
3x+9 |
= |
5x+27 |
3x-5x |
= |
27-9 |
-2x |
= |
18 |
x |
= |
18/-2 |
x |
= |
-9 |
Comprobación |
3(-9)+9 |
= |
5(-9)+27 |
-27+9 |
= |
-45+27 |
-18 |
= |
-18 |
| www.educa.mx |
| Ejercicio 224 | ||
-15x-6 |
= |
-7x-6 |
-15x+7x |
= |
-6+6 |
-8x |
= |
0 |
x |
= |
0/-8 |
x |
= |
0 |
Comprobación |
-15(0)-6 |
= |
-7(0)-6 |
0-6 |
= |
0-6 |
-6 |
= |
-6 |
| www.educa.mx |
| Ejercicio 225 | ||
-8x+11 |
= |
-9x+1 |
-8x+9x |
= |
1-11 |
x |
= |
-10 |
Comprobación |
-8(-10)+11 |
= |
-9(-10)+1 |
80+11 |
= |
90+1 |
91 |
= |
91 |
| www.educa.mx |
| Ejercicio 226 | ||
11x+11 |
= |
4x+4 |
11x-4x |
= |
4-11 |
7x |
= |
-7 |
x |
= |
-7/7 |
x |
= |
-1 |
Comprobación |
11(-1)+11 |
= |
4(-1)+4 |
-11+11 |
= |
-4+4 |
0 |
= |
0 |
| www.educa.mx |
| Ejercicio 227 | ||
-5x+15 |
= |
-3x+25 |
-5x+3x |
= |
25-15 |
-2x |
= |
10 |
x |
= |
10/-2 |
x |
= |
-5 |
Comprobación |
-5(-5)+15 |
= |
-3(-5)+25 |
25+15 |
= |
15+25 |
40 |
= |
40 |
| www.educa.mx |
| Ejercicio 228 | ||
14x-1 |
= |
-9x-70 |
14x+9x |
= |
-70+1 |
23x |
= |
-69 |
x |
= |
-69/23 |
x |
= |
-3 |
Comprobación |
14(-3)-1 |
= |
-9(-3)-70 |
-42-1 |
= |
27-70 |
-43 |
= |
-43 |
| www.educa.mx |
| Ejercicio 229 | ||
-14x-11 |
= |
-10x+45 |
-14x+10x |
= |
45+11 |
-4x |
= |
56 |
x |
= |
56/-4 |
x |
= |
-14 |
Comprobación |
-14(-14)-11 |
= |
-10(-14)+45 |
196-11 |
= |
140+45 |
185 |
= |
185 |
| www.educa.mx |
| Ejercicio 230 | ||
-11x-5 |
= |
-5x+31 |
-11x+5x |
= |
31+5 |
-6x |
= |
36 |
x |
= |
36/-6 |
x |
= |
-6 |
Comprobación |
-11(-6)-5 |
= |
-5(-6)+31 |
66-5 |
= |
30+31 |
61 |
= |
61 |
| www.educa.mx |
| Ejercicio 231 | ||
13x-8 |
= |
-x+20 |
13x+x |
= |
20+8 |
14x |
= |
28 |
x |
= |
28/14 |
x |
= |
2 |
Comprobación |
13(2)-8 |
= |
-(2)+20 |
26-8 |
= |
-2+20 |
18 |
= |
18 |
| www.educa.mx |
| Ejercicio 232 | ||
-4x-3 |
= |
-15x-146 |
-4x+15x |
= |
-146+3 |
11x |
= |
-143 |
x |
= |
-143/11 |
x |
= |
-13 |
Comprobación |
-4(-13)-3 |
= |
-15(-13)-146 |
52-3 |
= |
195-146 |
49 |
= |
49 |
| www.educa.mx |
| Ejercicio 233 | ||
9x-4 |
= |
-7x+124 |
9x+7x |
= |
124+4 |
16x |
= |
128 |
x |
= |
128/16 |
x |
= |
8 |
Comprobación |
9(8)-4 |
= |
-7(8)+124 |
72-4 |
= |
-56+124 |
68 |
= |
68 |
| www.educa.mx |
| Ejercicio 234 | ||
-4x+11 |
= |
14x-25 |
-4x-14x |
= |
-25-11 |
-18x |
= |
-36 |
x |
= |
-36/-18 |
x |
= |
2 |
Comprobación |
-4(2)+11 |
= |
14(2)-25 |
-8+11 |
= |
28-25 |
3 |
= |
3 |
| www.educa.mx |
| Ejercicio 235 | ||
9x+6 |
= |
-3x+138 |
9x+3x |
= |
138-6 |
12x |
= |
132 |
x |
= |
132/12 |
x |
= |
11 |
Comprobación |
9(11)+6 |
= |
-3(11)+138 |
99+6 |
= |
-33+138 |
105 |
= |
105 |
| www.educa.mx |
| Ejercicio 236 | ||
10x+1 |
= |
-15x+251 |
10x+15x |
= |
251-1 |
25x |
= |
250 |
x |
= |
250/25 |
x |
= |
10 |
Comprobación |
10(10)+1 |
= |
-15(10)+251 |
100+1 |
= |
-150+251 |
101 |
= |
101 |
| www.educa.mx |
| Ejercicio 237 | ||
-11x+12 |
= |
13x+300 |
-11x-13x |
= |
300-12 |
-24x |
= |
288 |
x |
= |
288/-24 |
x |
= |
-12 |
Comprobación |
-11(-12)+12 |
= |
13(-12)+300 |
132+12 |
= |
-156+300 |
144 |
= |
144 |
| www.educa.mx |
| Ejercicio 238 | ||
-13x-6 |
= |
-4x-6 |
-13x+4x |
= |
-6+6 |
-9x |
= |
0 |
x |
= |
0/-9 |
x |
= |
0 |
Comprobación |
-13(0)-6 |
= |
-4(0)-6 |
0-6 |
= |
0-6 |
-6 |
= |
-6 |
| www.educa.mx |
| Ejercicio 239 | ||
7x-6 |
= |
4x-36 |
7x-4x |
= |
-36+6 |
3x |
= |
-30 |
x |
= |
-30/3 |
x |
= |
-10 |
Comprobación |
7(-10)-6 |
= |
4(-10)-36 |
-70-6 |
= |
-40-36 |
-76 |
= |
-76 |
| www.educa.mx |
| Ejercicio 240 | ||
14x+12 |
= |
-11x-213 |
14x+11x |
= |
-213-12 |
25x |
= |
-225 |
x |
= |
-225/25 |
x |
= |
-9 |
Comprobación |
14(-9)+12 |
= |
-11(-9)-213 |
-126+12 |
= |
99-213 |
-114 |
= |
-114 |
| www.educa.mx |
| Ejercicio 241 | ||
10x-6 |
= |
-x-6 |
10x+x |
= |
-6+6 |
11x |
= |
0 |
x |
= |
0/11 |
x |
= |
0 |
Comprobación |
10(0)-6 |
= |
-(0)-6 |
0-6 |
= |
0-6 |
-6 |
= |
-6 |
| www.educa.mx |
| Ejercicio 242 | ||
12x+5 |
= |
5x-37 |
12x-5x |
= |
-37-5 |
7x |
= |
-42 |
x |
= |
-42/7 |
x |
= |
-6 |
Comprobación |
12(-6)+5 |
= |
5(-6)-37 |
-72+5 |
= |
-30-37 |
-67 |
= |
-67 |
| www.educa.mx |
| Ejercicio 243 | ||
11x-2 |
= |
-9x-222 |
11x+9x |
= |
-222+2 |
20x |
= |
-220 |
x |
= |
-220/20 |
x |
= |
-11 |
Comprobación |
11(-11)-2 |
= |
-9(-11)-222 |
-121-2 |
= |
99-222 |
-123 |
= |
-123 |
| www.educa.mx |
| Ejercicio 244 | ||
-8x+14 |
= |
-11x-4 |
-8x+11x |
= |
-4-14 |
3x |
= |
-18 |
x |
= |
-18/3 |
x |
= |
-6 |
Comprobación |
-8(-6)+14 |
= |
-11(-6)-4 |
48+14 |
= |
66-4 |
62 |
= |
62 |
| www.educa.mx |
| Ejercicio 245 | ||
6x+11 |
= |
-9x+221 |
6x+9x |
= |
221-11 |
15x |
= |
210 |
x |
= |
210/15 |
x |
= |
14 |
Comprobación |
6(14)+11 |
= |
-9(14)+221 |
84+11 |
= |
-126+221 |
95 |
= |
95 |
| www.educa.mx |
| Ejercicio 246 | ||
-15x+14 |
= |
3x-184 |
-15x-3x |
= |
-184-14 |
-18x |
= |
-198 |
x |
= |
-198/-18 |
x |
= |
11 |
Comprobación |
-15(11)+14 |
= |
3(11)-184 |
-165+14 |
= |
33-184 |
-151 |
= |
-151 |
| www.educa.mx |
| Ejercicio 247 | ||
-12x-10 |
= |
10x-296 |
-12x-10x |
= |
-296+10 |
-22x |
= |
-286 |
x |
= |
-286/-22 |
x |
= |
13 |
Comprobación |
-12(13)-10 |
= |
10(13)-296 |
-156-10 |
= |
130-296 |
-166 |
= |
-166 |
| www.educa.mx |
| Ejercicio 248 | ||
6x+6 |
= |
-2x+94 |
6x+2x |
= |
94-6 |
8x |
= |
88 |
x |
= |
88/8 |
x |
= |
11 |
Comprobación |
6(11)+6 |
= |
-2(11)+94 |
66+6 |
= |
-22+94 |
72 |
= |
72 |
| www.educa.mx |
| Ejercicio 249 | ||
-x-14 |
= |
-12x-168 |
-x+12x |
= |
-168+14 |
11x |
= |
-154 |
x |
= |
-154/11 |
x |
= |
-14 |
Comprobación |
-(-14)-14 |
= |
-12(-14)-168 |
14-14 |
= |
168-168 |
0 |
= |
0 |
| www.educa.mx |
| Ejercicio 250 | ||
-6x+9 |
= |
-14x+49 |
-6x+14x |
= |
49-9 |
8x |
= |
40 |
x |
= |
40/8 |
x |
= |
5 |
Comprobación |
-6(5)+9 |
= |
-14(5)+49 |
-30+9 |
= |
-70+49 |
-21 |
= |
-21 |
| www.educa.mx |
| Ejercicio 251 | ||
-6x+14 |
= |
8x+154 |
-6x-8x |
= |
154-14 |
-14x |
= |
140 |
x |
= |
140/-14 |
x |
= |
-10 |
Comprobación |
-6(-10)+14 |
= |
8(-10)+154 |
60+14 |
= |
-80+154 |
74 |
= |
74 |
| www.educa.mx |
| Ejercicio 252 | ||
3x+12 |
= |
-5x+92 |
3x+5x |
= |
92-12 |
8x |
= |
80 |
x |
= |
80/8 |
x |
= |
10 |
Comprobación |
3(10)+12 |
= |
-5(10)+92 |
30+12 |
= |
-50+92 |
42 |
= |
42 |
| www.educa.mx |
| Ejercicio 253 | ||
13x-13 |
= |
-10x+286 |
13x+10x |
= |
286+13 |
23x |
= |
299 |
x |
= |
299/23 |
x |
= |
13 |
Comprobación |
13(13)-13 |
= |
-10(13)+286 |
169-13 |
= |
-130+286 |
156 |
= |
156 |
| www.educa.mx |
| Ejercicio 254 | ||
-3x+5 |
= |
-6x-28 |
-3x+6x |
= |
-28-5 |
3x |
= |
-33 |
x |
= |
-33/3 |
x |
= |
-11 |
Comprobación |
-3(-11)+5 |
= |
-6(-11)-28 |
33+5 |
= |
66-28 |
38 |
= |
38 |
| www.educa.mx |
| Ejercicio 255 | ||
-9x+8 |
= |
5x-90 |
-9x-5x |
= |
-90-8 |
-14x |
= |
-98 |
x |
= |
-98/-14 |
x |
= |
7 |
Comprobación |
-9(7)+8 |
= |
5(7)-90 |
-63+8 |
= |
35-90 |
-55 |
= |
-55 |
| www.educa.mx |
| Ejercicio 256 | ||
-4x-4 |
= |
13x-157 |
-4x-13x |
= |
-157+4 |
-17x |
= |
-153 |
x |
= |
-153/-17 |
x |
= |
9 |
Comprobación |
-4(9)-4 |
= |
13(9)-157 |
-36-4 |
= |
117-157 |
-40 |
= |
-40 |
| www.educa.mx |
| Ejercicio 257 | ||
x-12 |
= |
-10x-78 |
x+10x |
= |
-78+12 |
11x |
= |
-66 |
x |
= |
-66/11 |
x |
= |
-6 |
Comprobación |
-6-12 |
= |
-10(-6)-78 |
-6-12 |
60-78 | |
-18 |
= |
-18 |
| www.educa.mx |
| Ejercicio 258 | ||
-10x-6 |
= |
7x+249 |
-10x-7x |
= |
249+6 |
-17x |
= |
255 |
x |
= |
255/-17 |
x |
= |
-15 |
Comprobación |
-10(-15)-6 |
= |
7(-15)+249 |
150-6 |
= |
-105+249 |
144 |
= |
144 |
| www.educa.mx |
| Ejercicio 259 | ||
14x-12 |
= |
-11x-387 |
14x+11x |
= |
-387+12 |
25x |
= |
-375 |
x |
= |
-375/25 |
x |
= |
-15 |
Comprobación |
14(-15)-12 |
= |
-11(-15)-387 |
-210-12 |
= |
165-387 |
-222 |
= |
-222 |
| www.educa.mx |
| Ejercicio 260 | ||
-13x-7 |
= |
-9x-7 |
-13x+9x |
= |
-7+7 |
-4x |
= |
0 |
x |
= |
0/-4 |
x |
= |
0 |
Comprobación |
-13(0)-7 |
= |
-9(0)-7 |
0-7 |
= |
0-7 |
-7 |
= |
-7 |
| www.educa.mx |
| Ejercicio 261 | ||
3x+3 |
= |
-11x-109 |
3x+11x |
= |
-109-3 |
14x |
= |
-112 |
x |
= |
-112/14 |
x |
= |
-8 |
Comprobación |
3(-8)+3 |
= |
-11(-8)-109 |
-24+3 |
= |
88-109 |
-21 |
= |
-21 |
| www.educa.mx |
| Ejercicio 262 | ||
-9x-1 |
= |
2x+87 |
-9x-2x |
= |
87+1 |
-11x |
= |
88 |
x |
= |
88/-11 |
x |
= |
-8 |
Comprobación |
-9(-8)-1 |
= |
2(-8)+87 |
72-1 |
= |
-16+87 |
71 |
= |
71 |
| www.educa.mx |
| Ejercicio 263 | ||
3x-12 |
= |
-11x-138 |
3x+11x |
= |
-138+12 |
14x |
= |
-126 |
x |
= |
-126/14 |
x |
= |
-9 |
Comprobación |
3(-9)-12 |
= |
-11(-9)-138 |
-27-12 |
= |
99-138 |
-39 |
= |
-39 |
| www.educa.mx |
| Ejercicio 264 | ||
-5x+11 |
= |
11x-53 |
-5x-11x |
= |
-53-11 |
-16x |
= |
-64 |
x |
= |
-64/-16 |
x |
= |
4 |
Comprobación |
-5(4)+11 |
= |
11(4)-53 |
-20+11 |
= |
44-53 |
-9 |
= |
-9 |
| www.educa.mx |
| Ejercicio 265 | ||
3x-12 |
= |
6x+3 |
3x-6x |
= |
3+12 |
-3x |
= |
15 |
x |
= |
15/-3 |
x |
= |
-5 |
Comprobación |
3(-5)-12 |
= |
6(-5)+3 |
-15-12 |
= |
-30+3 |
-27 |
= |
-27 |
| www.educa.mx |
| Ejercicio 266 | ||
x+9 |
= |
-5x-57 |
x+5x |
= |
-57-9 |
6x |
= |
-66 |
x |
= |
-66/6 |
x |
= |
-11 |
Comprobación |
-11+9 |
= |
-5(-11)-57 |
-11+9 |
55-57 | |
-2 |
= |
-2 |
| www.educa.mx |
| Ejercicio 267 | ||
12x+3 |
= |
3x+120 |
12x-3x |
= |
120-3 |
9x |
= |
117 |
x |
= |
117/9 |
x |
= |
13 |
Comprobación |
12(13)+3 |
= |
3(13)+120 |
156+3 |
= |
39+120 |
159 |
= |
159 |
| www.educa.mx |
| Ejercicio 268 | ||
-x+6 |
= |
3x+46 |
-x-3x |
= |
46-6 |
-4x |
= |
40 |
x |
= |
40/-4 |
x |
= |
-10 |
Comprobación |
-(-10)+6 |
= |
3(-10)+46 |
10+6 |
= |
-30+46 |
16 |
= |
16 |
| www.educa.mx |
| Ejercicio 269 | ||
-10x-9 |
= |
11x+222 |
-10x-11x |
= |
222+9 |
-21x |
= |
231 |
x |
= |
231/-21 |
x |
= |
-11 |
Comprobación |
-10(-11)-9 |
= |
11(-11)+222 |
110-9 |
= |
-121+222 |
101 |
= |
101 |
| www.educa.mx |
| Ejercicio 270 | ||
14x+10 |
= |
-8x-56 |
14x+8x |
= |
-56-10 |
22x |
= |
-66 |
x |
= |
-66/22 |
x |
= |
-3 |
Comprobación |
14(-3)+10 |
= |
-8(-3)-56 |
-42+10 |
= |
24-56 |
-32 |
= |
-32 |
| www.educa.mx |
| Ejercicio 271 | ||
5x+2 |
= |
-8x+158 |
5x+8x |
= |
158-2 |
13x |
= |
156 |
x |
= |
156/13 |
x |
= |
12 |
Comprobación |
5(12)+2 |
= |
-8(12)+158 |
60+2 |
= |
-96+158 |
62 |
= |
62 |
| www.educa.mx |
| Ejercicio 272 | ||
3x-11 |
= |
2x-14 |
3x-2x |
= |
-14+11 |
x |
= |
-3 |
Comprobación |
3(-3)-11 |
= |
2(-3)-14 |
-9-11 |
= |
-6-14 |
-20 |
= |
-20 |
| www.educa.mx |
| Ejercicio 273 | ||
-7x-6 |
= |
-10x-30 |
-7x+10x |
= |
-30+6 |
3x |
= |
-24 |
x |
= |
-24/3 |
x |
= |
-8 |
Comprobación |
-7(-8)-6 |
= |
-10(-8)-30 |
56-6 |
= |
80-30 |
50 |
= |
50 |
| www.educa.mx |
| Ejercicio 274 | ||
-3x+9 |
= |
2x+14 |
-3x-2x |
= |
14-9 |
-5x |
= |
5 |
x |
= |
5/-5 |
x |
= |
-1 |
Comprobación |
-3(-1)+9 |
= |
2(-1)+14 |
3+9 |
= |
-2+14 |
12 |
= |
12 |
| www.educa.mx |
| Ejercicio 275 | ||
2x+4 |
= |
-9x-7 |
2x+9x |
= |
-7-4 |
11x |
= |
-11 |
x |
= |
-11/11 |
x |
= |
-1 |
Comprobación |
2(-1)+4 |
= |
-9(-1)-7 |
-2+4 |
= |
9-7 |
2 |
= |
2 |
| www.educa.mx |
| Ejercicio 276 | ||
7x+9 |
= |
-11x+135 |
7x+11x |
= |
135-9 |
18x |
= |
126 |
x |
= |
126/18 |
x |
= |
7 |
Comprobación |
7(7)+9 |
= |
-11(7)+135 |
49+9 |
= |
-77+135 |
58 |
= |
58 |
| www.educa.mx |
| Ejercicio 277 | ||
-3x-9 |
= |
-10x-9 |
-3x+10x |
= |
-9+9 |
7x |
= |
0 |
x |
= |
0/7 |
x |
= |
0 |
Comprobación |
-3(0)-9 |
= |
-10(0)-9 |
0-9 |
= |
0-9 |
-9 |
= |
-9 |
| www.educa.mx |
| Ejercicio 278 | ||
x-2 |
= |
-15x-50 |
x+15x |
= |
-50+2 |
16x |
= |
-48 |
x |
= |
-48/16 |
x |
= |
-3 |
Comprobación |
-3-2 |
= |
-15(-3)-50 |
-3-2 |
45-50 | |
-5 |
= |
-5 |
| www.educa.mx |
| Ejercicio 279 | ||
-6x+13 |
= |
-11x+43 |
-6x+11x |
= |
43-13 |
5x |
= |
30 |
x |
= |
30/5 |
x |
= |
6 |
Comprobación |
-6(6)+13 |
= |
-11(6)+43 |
-36+13 |
= |
-66+43 |
-23 |
= |
-23 |
| www.educa.mx |
| Ejercicio 280 | ||
7x+8 |
= |
14x-13 |
7x-14x |
= |
-13-8 |
-7x |
= |
-21 |
x |
= |
-21/-7 |
x |
= |
3 |
Comprobación |
7(3)+8 |
= |
14(3)-13 |
21+8 |
= |
42-13 |
29 |
= |
29 |
| www.educa.mx |
| Ejercicio 281 | ||
2x-14 |
= |
14x-134 |
2x-14x |
= |
-134+14 |
-12x |
= |
-120 |
x |
= |
-120/-12 |
x |
= |
10 |
Comprobación |
2(10)-14 |
= |
14(10)-134 |
20-14 |
= |
140-134 |
6 |
= |
6 |
| www.educa.mx |
| Ejercicio 282 | ||
x-15 |
= |
-14x-210 |
x+14x |
= |
-210+15 |
15x |
= |
-195 |
x |
= |
-195/15 |
x |
= |
-13 |
Comprobación |
-13-15 |
= |
-14(-13)-210 |
-13-15 |
182-210 | |
-28 |
= |
-28 |
| www.educa.mx |
| Ejercicio 283 | ||
-x-11 |
= |
-11x-1 |
-x+11x |
= |
-1+11 |
10x |
= |
10 |
x |
= |
10/10 |
x |
= |
1 |
Comprobación |
-(1)-11 |
= |
-11(1)-1 |
-1-11 |
= |
-11-1 |
-12 |
= |
-12 |
| www.educa.mx |
| Ejercicio 284 | ||
-14x+8 |
= |
-8x-76 |
-14x+8x |
= |
-76-8 |
-6x |
= |
-84 |
x |
= |
-84/-6 |
x |
= |
14 |
Comprobación |
-14(14)+8 |
= |
-8(14)-76 |
-196+8 |
= |
-112-76 |
-188 |
= |
-188 |
| www.educa.mx |
| Ejercicio 285 | ||
4x+5 |
= |
-14x+5 |
4x+14x |
= |
5-5 |
18x |
= |
0 |
x |
= |
0/18 |
x |
= |
0 |
Comprobación |
4(0)+5 |
= |
-14(0)+5 |
0+5 |
= |
0+5 |
5 |
= |
5 |
| www.educa.mx |
| Ejercicio 286 | ||
-x+13 |
= |
-15x-113 |
-x+15x |
= |
-113-13 |
14x |
= |
-126 |
x |
= |
-126/14 |
x |
= |
-9 |
Comprobación |
-(-9)+13 |
= |
-15(-9)-113 |
9+13 |
= |
135-113 |
22 |
= |
22 |
| www.educa.mx |
| Ejercicio 287 | ||
-6x+4 |
= |
12x+40 |
-6x-12x |
= |
40-4 |
-18x |
= |
36 |
x |
= |
36/-18 |
x |
= |
-2 |
Comprobación |
-6(-2)+4 |
= |
12(-2)+40 |
12+4 |
= |
-24+40 |
16 |
= |
16 |
| www.educa.mx |
| Ejercicio 288 | ||
-5x-6 |
= |
-7x+12 |
-5x+7x |
= |
12+6 |
2x |
= |
18 |
x |
= |
18/2 |
x |
= |
9 |
Comprobación |
-5(9)-6 |
= |
-7(9)+12 |
-45-6 |
= |
-63+12 |
-51 |
= |
-51 |
| www.educa.mx |
| Ejercicio 289 | ||
-10x-4 |
= |
5x-184 |
-10x-5x |
= |
-184+4 |
-15x |
= |
-180 |
x |
= |
-180/-15 |
x |
= |
12 |
Comprobación |
-10(12)-4 |
= |
5(12)-184 |
-120-4 |
= |
60-184 |
-124 |
= |
-124 |
| www.educa.mx |
| Ejercicio 290 | ||
-11x-12 |
= |
-10x-12 |
-11x+10x |
= |
-12+12 |
-x |
= |
0 |
x |
= |
0/-1 |
x |
= |
0 |
Comprobación |
-11(0)-12 |
= |
-10(0)-12 |
0-12 |
= |
0-12 |
-12 |
= |
-12 |
| www.educa.mx |
| Ejercicio 291 | ||
-5x+9 |
= |
-10x+9 |
-5x+10x |
= |
9-9 |
5x |
= |
0 |
x |
= |
0/5 |
x |
= |
0 |
Comprobación |
-5(0)+9 |
= |
-10(0)+9 |
0+9 |
= |
0+9 |
9 |
= |
9 |
| www.educa.mx |
| Ejercicio 292 | ||
13x+10 |
= |
5x-14 |
13x-5x |
= |
-14-10 |
8x |
= |
-24 |
x |
= |
-24/8 |
x |
= |
-3 |
Comprobación |
13(-3)+10 |
= |
5(-3)-14 |
-39+10 |
= |
-15-14 |
-29 |
= |
-29 |
| www.educa.mx |
| Ejercicio 293 | ||
13x-1 |
= |
12x-4 |
13x-12x |
= |
-4+1 |
x |
= |
-3 |
Comprobación |
13(-3)-1 |
= |
12(-3)-4 |
-39-1 |
= |
-36-4 |
-40 |
= |
-40 |
| www.educa.mx |
| Ejercicio 294 | ||
-12x-3 |
= |
10x+41 |
-12x-10x |
= |
41+3 |
-22x |
= |
44 |
x |
= |
44/-22 |
x |
= |
-2 |
Comprobación |
-12(-2)-3 |
= |
10(-2)+41 |
24-3 |
= |
-20+41 |
21 |
= |
21 |
| www.educa.mx |
| Ejercicio 295 | ||
14x-4 |
= |
-x-184 |
14x+x |
= |
-184+4 |
15x |
= |
-180 |
x |
= |
-180/15 |
x |
= |
-12 |
Comprobación |
14(-12)-4 |
= |
-(-12)-184 |
-168-4 |
= |
12-184 |
-172 |
= |
-172 |
| www.educa.mx |
| Ejercicio 296 | ||
-14x+1 |
= |
11x-174 |
-14x-11x |
= |
-174-1 |
-25x |
= |
-175 |
x |
= |
-175/-25 |
x |
= |
7 |
Comprobación |
-14(7)+1 |
= |
11(7)-174 |
-98+1 |
= |
77-174 |
-97 |
= |
-97 |
| www.educa.mx |
| Ejercicio 297 | ||
x+2 |
= |
13x+62 |
x-13x |
= |
62-2 |
-12x |
= |
60 |
x |
= |
60/-12 |
x |
= |
-5 |
Comprobación |
-5+2 |
= |
13(-5)+62 |
-5+2 |
-65+62 | |
-3 |
= |
-3 |
| www.educa.mx |
| Ejercicio 298 | ||
-2x-6 |
= |
-7x-51 |
-2x+7x |
= |
-51+6 |
5x |
= |
-45 |
x |
= |
-45/5 |
x |
= |
-9 |
Comprobación |
-2(-9)-6 |
= |
-7(-9)-51 |
18-6 |
= |
63-51 |
12 |
= |
12 |
| www.educa.mx |
| Ejercicio 299 | ||
-5x+9 |
= |
-9x+21 |
-5x+9x |
= |
21-9 |
4x |
= |
12 |
x |
= |
12/4 |
x |
= |
3 |
Comprobación |
-5(3)+9 |
= |
-9(3)+21 |
-15+9 |
= |
-27+21 |
-6 |
= |
-6 |
| www.educa.mx |
| Ejercicio 300 | ||
-2x+6 |
= |
6x+94 |
-2x-6x |
= |
94-6 |
-8x |
= |
88 |
x |
= |
88/-8 |
x |
= |
-11 |
Comprobación |
-2(-11)+6 |
= |
6(-11)+94 |
22+6 |
= |
-66+94 |
28 |
= |
28 |
| www.educa.mx |