Respuesta :

Aisin

Answer:

x = 7, d

Step-by-step explanation:

-x = 6 - 3x + 8
=> -x - (6-3x+8) = 0
=> -x - 6 + 3x - 8 = 0
We simplify : 2x - 14 = 0
2x = 14, and x = 7

Recheck : -7 = 6 - 3 x 7 + 8 => -7 = 6 - 21 + 8 = -7.