Actividad. Obtén el valor de X y realiza la comprobación para cada una de las ecuaciones.
| 
-14x-12 | 
= | 12x+92 | 
| 
6x-7 | 
= | -8x-105 | 
| 
-12x+10 | 
= | 10x-166 | 
| 
-9x+2 | 
= | 2x+167 | 
| 
x-15 | 
= | 6x-40 | 
| 
-7x+5 | 
= | 14x+194 | 
| 
-14x-12 | 
= | 12x+92 | 
| 
6x-7 | 
= | -8x-105 | 
| 
-12x+10 | 
= | 10x-166 | 
| 
-9x+2 | 
= | 2x+167 | 
| 
x-15 | 
= | 6x-40 | 
| 
-7x+5 | 
= | 14x+194 | 
| 
-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 | 
| 
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 | 
| 
13x+8 | 
= | -14x-343 | 
| 
12x+1 | 
= | -15x-404 | 
| 
-5x+9 | 
= | 12x+179 | 
| 
-x+15 | 
= | 5x+15 | 
| 
-6x-10 | 
= | 4x+80 | 
| 
2x+6 | 
= | -12 | 
| 
-13x-6 | 
= | -97 | 
| 
-12x-14 | 
= | -14 | 
| 
-11x+12 | 
= | 144 | 
| 
-11x | 
= | 144-12 | 
| 
-11x | 
= | 132 | 
| 
x | 
= | 132/-11 | 
| 
x | 
= | -12 | 
| 
Comprobación | 
| 
-11(-12)+12 | 
= | 144 | 
| 
132+12 | 
= | 144 | 
| 
144 | 
= | 144 | 
| 
-8x-15 | 
= | -111 | 
| 
-8x | 
= | -111+15 | 
| 
-8x | 
= | -96 | 
| 
x | 
= | -96/-8 | 
| 
x | 
= | 12 | 
| 
Comprobación | 
| 
-8(12)-15 | 
= | -111 | 
| 
-96-15 | 
= | -111 | 
| 
-111 | 
= | -111 |