Solve for a
a=16
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\frac{1}{2}a=9-1
Subtract 1 from both sides.
\frac{1}{2}a=8
Subtract 1 from 9 to get 8.
a=8\times 2
Multiply both sides by 2, the reciprocal of \frac{1}{2}.
a=16
Multiply 8 and 2 to get 16.
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