Solve for r
r=-\frac{1}{5}=-0.2
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18r+9+57r=-6
Add 57r to both sides.
75r+9=-6
Combine 18r and 57r to get 75r.
75r=-6-9
Subtract 9 from both sides.
75r=-15
Subtract 9 from -6 to get -15.
r=\frac{-15}{75}
Divide both sides by 75.
r=-\frac{1}{5}
Reduce the fraction \frac{-15}{75} to lowest terms by extracting and canceling out 15.
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