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Anonymous
Subtract 9 from both sides: 2x = 15, divide both sides by 2: x = 7.5
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3x - 3 = 2x + 6 3x = 2x + 9 x = 9
x = 9.
2x-3=4x+9 -2x-12=0 2x=-12 x=-6
8x - 4x + 7 = 94x + 7 = 94x = 9-74x = 2x = 4/2x = 1/2x = 0.5