Question

Solve for x: [3x + 12] = 18

A. x = -2, x = 10
B. X = 10, x = -10
C. X = 2, x = -2
O D. x = 2, x = -10

Answer 1

D

Explanation:

3(2) + 12 = 18

3(-10) + 12 = -18

The only answer that has two 18s solutions is D