Actividad. Resuelve las siguientes ecuaciones obteniendo el valor de x, además anota su comprobación.
14x-12
|
=
| 12x+92 |
6x-7
|
=
| -8x-105 |
12x+10
|
=
| 10x-166 |
14x-12
|
=
| 12x+92 |
6x-7
|
=
| -8x-105 |
12x+10
|
=
| 10x-166 |
-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 |
13x+8
|
=
| -14x-343 |
12x+1
|
=
| -15x-404 |
-5x+9
|
=
| 12x+179 |
-x+15
|
=
| 5x+15 |
-6x-10
|
=
| 4x+80 |
7x+10
|
=
| -7x+94 |
-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 |
6x-10
|
=
| -16 |
-15x-6
|
=
| 9 |
12x+12
|
=
| 72 |
-10x+9
|
=
| -81 |
5x-15
|
=
| 15 |
2x-13
|
=
| -19 |
7x+5
|
=
| -100 |
-12x-15
|
=
| 9 |