Solve for x
x=-4
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x\times 3+12=x+4
The opposite of -4 is 4.
x\times 3+12-x=4
Subtract x from both sides.
2x+12=4
Combine x\times 3 and -x to get 2x.
2x=4-12
Subtract 12 from both sides.
2x=-8
Subtract 12 from 4 to get -8.
x=\frac{-8}{2}
Divide both sides by 2.
x=-4
Divide -8 by 2 to get -4.
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