Solve for x
x=-3
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-3x+3=12
Combine x and -4x to get -3x.
-3x=12-3
Subtract 3 from both sides.
-3x=9
Subtract 3 from 12 to get 9.
x=\frac{9}{-3}
Divide both sides by -3.
x=-3
Divide 9 by -3 to get -3.
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