Solve for c
c=\frac{e}{m^{2}}
m\neq 0
Solve for m
m=\sqrt{\frac{e}{c}}
m=-\sqrt{\frac{e}{c}}\text{, }c>0
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cm^{2}=e
Swap sides so that all variable terms are on the left hand side.
m^{2}c=e
The equation is in standard form.
\frac{m^{2}c}{m^{2}}=\frac{e}{m^{2}}
Divide both sides by m^{2}.
c=\frac{e}{m^{2}}
Dividing by m^{2} undoes the multiplication by m^{2}.
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