-8 + 12x + 7x + 12 =

A. 19x + 4
B. 24x - 1
C. 5x + 20
D. 5x + 4

1 answer

Rewriting the equation we have:
-8 + 12x + 7x + 12 = -8 + 12 + 12x + 7x = 16 + 19x.
So the correct answer is A. 19x + 4.