Solve for x
x=30
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\frac{1}{2}x=18-3
Subtract 3 from both sides.
\frac{1}{2}x=15
Subtract 3 from 18 to get 15.
x=15\times 2
Multiply both sides by 2, the reciprocal of \frac{1}{2}.
x=30
Multiply 15 and 2 to get 30.
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