9x + 12 = 2x + 47 Add -12 to both sides 9x + 12 - 12 = 2x + 47 - 12 9x = 2x + 35 Add -2x to both sides 9x - 2x = 2x + 35 - 2x 7x = 35 Divide both sides by 7 x = 5 Edwin