Solve for x
x=36
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2x+12=84
Combine x and x to get 2x.
2x=84-12
Subtract 12 from both sides.
2x=72
Subtract 12 from 84 to get 72.
x=\frac{72}{2}
Divide both sides by 2.
x=36
Divide 72 by 2 to get 36.
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