Solve for m
m=\frac{r}{25}
Solve for r
r=25m
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25m=r
Swap sides so that all variable terms are on the left hand side.
\frac{25m}{25}=\frac{r}{25}
Divide both sides by 25.
m=\frac{r}{25}
Dividing by 25 undoes the multiplication by 25.
Examples
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