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3x - 6x = -4 - 14
-3x = -18
x = -18 : -3
x =6
b. 7- 5x = 35 - x
-5x + x = 35 - 7
-4x = 28
x = 28 : -4
x = -7
c.5x + 4 = 3( x-2)
5x +4 = 3x -6
5x - 3x = -6 -4
2x = -10
x = -10 : 2
x = -5
d. (x-8) + 4 = 3(2x+7) - 9
x - 8 + 4 = 6x +21 -9
x -4 =6x + 12
x - 6x = 12 + 4
-5x =16
x = -16/5