Question

Solve 3x + 9 = 24.
A. x = 5
B. x = 11
C. x = 12
D. x = 18

Answer 1

A. x = 5

Explanation:

3x + 9 = 24

→ Minus 9 from both sides

3x = 15

→ Divide both sides by 3

x = 5