Solve for a
a=5200
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\frac{4160}{0.8}=a
Divide both sides by 0.8.
\frac{41600}{8}=a
Expand \frac{4160}{0.8} by multiplying both numerator and the denominator by 10.
5200=a
Divide 41600 by 8 to get 5200.
a=5200
Swap sides so that all variable terms are on the left hand side.
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