Actividad: Resuelve las siguientes ecuaciones, respeta las indicaciones.
-12x-15=9
5x-14=-74
8x-5=-109
-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 |