Solve for r
r=-3.38
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r=\frac{-5.07}{1.5}
Divide both sides by 1.5.
r=\frac{-507}{150}
Expand \frac{-5.07}{1.5} by multiplying both numerator and the denominator by 100.
r=-\frac{169}{50}
Reduce the fraction \frac{-507}{150} to lowest terms by extracting and canceling out 3.
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