Evaluate e=mc^2

$e = m c^{2}$

Step 1

Rewrite the equation as $m c^{2} = e$ .

$m c^{2} = e$

Step 2

Divide each term in $m c^{2} = e$ by $c^{2}$ and simplify.

Divide each term in $m c^{2} = e$ by $c^{2}$ .

$\frac{m c^{2}}{c^{2}} = \frac{e}{c^{2}}$

Simplify the left side.

Cancel the common factor of $c^{2}$ .

Cancel the common factor.

$\frac{m c^{2}}{c^{2}} = \frac{e}{c^{2}}$

Divide $m$ by $1$ .

$m = \frac{e}{c^{2}}$