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