3 x + 12 = (3
Solve for x
x=-3
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3x=3-12
Subtract 12 from both sides.
3x=-9
Subtract 12 from 3 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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