Respuesta :

12 – 3x – x = 8
12 - 4x = 8             |Combine like terms
-4x = 8 - 12            | Take away 12 from both sides
-4x = -4                  | Divide by -4 on both sides
x = 1

Answer: x = 1 (Answer D)
Supernova

12 - 3x - x = 8

Combine like terms.

12 - 4x = 8

Subtract 12 from both sides.

-4x = -4

Divide both sides by -4.

x = 1

D) 1 is your answer.