Ejercicio 1 | ||
x-15 | = | -27 |
x | = | -27+15 |
x | = | -12 |
Comprobación |
-12-15 | = | -27 |
-27 | = | -27 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
Video |
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