Solve for x
x=36
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5x=324-12^{2}
Calculate 18 to the power of 2 and get 324.
5x=324-144
Calculate 12 to the power of 2 and get 144.
5x=180
Subtract 144 from 324 to get 180.
x=\frac{180}{5}
Divide both sides by 5.
x=36
Divide 180 by 5 to get 36.
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