Solve for C
C<-\frac{5}{9}
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\frac{9}{5}C<31-32
Subtract 32 from both sides.
\frac{9}{5}C<-1
Subtract 32 from 31 to get -1.
C<-\frac{5}{9}
Multiply both sides by \frac{5}{9}, the reciprocal of \frac{9}{5}. Since \frac{9}{5} is positive, the inequality direction remains the same.
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