Solve for x
x = \frac{505}{2} = 252\frac{1}{2} = 252.5
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2x+7=512
Calculate 8 to the power of 3 and get 512.
2x=512-7
Subtract 7 from both sides.
2x=505
Subtract 7 from 512 to get 505.
x=\frac{505}{2}
Divide both sides by 2.
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