Solve for c
c=\frac{r}{3}
Solve for r
r=3c
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r=3c
Calculate \frac{1}{27} to the power of -\frac{1}{3} and get 3.
3c=r
Swap sides so that all variable terms are on the left hand side.
\frac{3c}{3}=\frac{r}{3}
Divide both sides by 3.
c=\frac{r}{3}
Dividing by 3 undoes the multiplication by 3.
r=3c
Calculate \frac{1}{27} to the power of -\frac{1}{3} and get 3.
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