8
4( x - 2) + 6( x + 3) = 40
4x - 8 + 6x + 18 = 40
10x + 10 = 40
10x = 40 - 10
10x = 30
x = 30/10
x = 3
Added 5/8/2014 11:18:11 AM
This answer has been confirmed as correct and helpful.
8
9x – 2 = 4x + 3
9x - 4x = 3 + 2
5x = 5
x = 5/5
x = 1
Added 5/8/2014 11:19:00 AM
This answer has been confirmed as correct and helpful.
8
A number decreased by 12 is 45.
x - 12 = 45
x = 45 + 12
x = 57
Added 5/8/2014 11:19:40 AM
This answer has been confirmed as correct and helpful.