Solve for r
r<-\frac{13}{6}
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-6r+7>20
Combine 10r and -16r to get -6r.
-6r>20-7
Subtract 7 from both sides.
-6r>13
Subtract 7 from 20 to get 13.
r<-\frac{13}{6}
Divide both sides by -6. Since -6 is negative, the inequality direction is changed.
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