y = 5, x = ? 4(x - 3) + y = 21 Solve for x

Asked by AnneS2 12 years ago 8/9/2013 10:38 AM

Last updated by anonymous 12 years ago 8/10/2013 1:56 PM

Answered by CherieS 12 years ago 8/10/2013 1:56 PM

4(x - 3) + y = 21

4(x - 3) + 5 = 21

4(x) (4)( - 3) + 5 = 21

4x-12+ 5 = 21

4x-7 = 21

4x-7+7 = 21+7

4x=28

4x/4=28/4

x=7