Respuesta :

Answer:

x = 4

Step-by-step explanation:

4x - 8x = 12 - 7x

4x - 8x + 7x = 12

-4x + 7x = 12

3x = 12

x = 12/3

x = 4

Answer:

Step-by-step explanation:

4x -8x = 12 - 7x

-4x = 12 - 7x

3x = 12

x = 4