3x
22+2x = 37+6+x 2x-x = 37+6-22 x = 21
so 3x + 2 = x + 12 ie 2x = 10 x =5
2x + 3y - x + 5y combine the like terms 2x - x + 3y +5y simple arithmetic x + 8y
2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4
4
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
x + 2x + 6x = 9x
6x with 3 over the x, because that is how many x's there are.
X=7
x plus 2 = x + 2 x plus x = 2x
x=1
5x + x - 6x + 2x = 2x
x + 2x + 423 = 3x + 423
3x + 2x - 8x + 2x = -x
-7 +2x = x + 8 2x - x = 7 + 8 x = 15
x+x=2x