
Mark M. answered 10/12/16
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
-2(3x - 4) - 5 = 3x + 12
-6x + 8 - 5 = 3x + 12 distribute
-6x + 3 = 3x + 12 combine like terms
-9x + 3 = 12 subtract 3x from both sides
-9x = 9 subtract 3 from both sides
x = -1 divide both sides by -9