Respuesta :

-4 + 3(x+4) = -4 + 5x
-4 + 3x + 12 = -4 + 5x
8 + 3x = -4 + 5x
(8+4)= (5x - 3x)
12 = 2x
So x = 6.

Answer:

x = 6

I hope this helps!