Respuesta :

Answer:

3(2x-2)-4(x+7)+20 = -8 => x = 13

Step-by-step explanation:

3(2x-2)-4(x+7)+20 = -8

6x-6-(4x+28)+20 = -8

6x-6-4x-28-20 = -8

6x-4x-6-28 = -8

2x- 34 = -8

2x -34 +34 = -8 +34

2x = 26

x= 13