Solve for l
l=20
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\frac{34.5}{1.725}=l
Multiply 1.5 and 1.15 to get 1.725.
\frac{34500}{1725}=l
Expand \frac{34.5}{1.725} by multiplying both numerator and the denominator by 1000.
20=l
Divide 34500 by 1725 to get 20.
l=20
Swap sides so that all variable terms are on the left hand side.
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