Question

Solve for x: 12x-9=2×+21​

Answer 1

x = 3

Explanation:

12x - 9 - 2x = 2x + 21 - 2x

10x - 9 = 21

10x - 9 + 9 = 21 + 9

10x = 30

10x ÷ 10 = 30 ÷ 10

x = 10