Solve for x
x=80
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\frac{1}{2}x=10\times 4
Multiply both sides by 4.
\frac{1}{2}x=40
Multiply 10 and 4 to get 40.
x=40\times 2
Multiply both sides by 2, the reciprocal of \frac{1}{2}.
x=80
Multiply 40 and 2 to get 80.
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