Respuesta :

Sashakay

Correct Work

4x+8 +3(x-4)

4x +8 + 3x-12

4x+3x+8 -12

7x -4

Mistake Made

  1. 3 wasn't multiplied by the 4 in the bracket
  2. Like terms wasn't combined in the working out
  3. The answer was supposed to be -4, 8-4= -4