Question

Solve for x: |3x + 12|= 18 (5 points)

1) x = 2, x = -10
2) x = 2, x = -2
3) x = 10, x = -10
4) x = -2, x = 10

Answer 1

1)x = 2, x =-10

Explanation:

3x + 12 = 18 or -18

if 3x + 12 = 18 ➡ 3x = 18 - 12 ➡ x = 2

if 3x + 12 = -18 ➡ 3x =-18 - 12 ➡ x = -10