4 + 3x = -8
subtract four from each side
3x = -12
divide each side by three
x = -4
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3x + 2x = 5x. 5x= (-4) X = (-4)/5 x= -0.8
-3x+14 = -4 -3x = -4-14 -3x = -18 x = 6
5x - 4 = 3x + 6 5x - 3x = 6 + 4 2x = 10 x = 5
3x + 4 = 16 3x = 16 - 4 x = 12/3 x = 4
7x + 16 = 3x + 4 4x = -12 x = -3