Solve for x
x=71
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2x+21=163
Combine x and x to get 2x.
2x=163-21
Subtract 21 from both sides.
2x=142
Subtract 21 from 163 to get 142.
x=\frac{142}{2}
Divide both sides by 2.
x=71
Divide 142 by 2 to get 71.
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