Respuesta :

Answer:

x = 4.

Step-by-step explanation:

4 - 5x = 12 - 7x

4 - 5x + 7x = 12 - 7x + 7x

4 + 2x = 12

4 - 4 + 2x = 12 - 4

2x = 8

x = 8/2 = 4.

Answer:

4-5x=12-7x

-5x+7x=12-4

2x=8

x=8/2

x=4

Step-by-step explanation: