Answer
$m=\dfrac{E}{c^2}$
Work Step by Step
$\bf{\text{Solution Outline:}}$
To solve the given equation, $
E=mc^2
$ for $
m
,$ use the properties of equality to isolate the variable.
$\bf{\text{Solution Details:}}$
Using the properties of equality to isolate the variable, the equation above is equivalent to
\begin{array}{l}\require{cancel}
E=mc^2
\\\\
\dfrac{E}{c^2}=\dfrac{mc^2}{c^2}
\\\\
\dfrac{E}{c^2}=m
\\\\
m=\dfrac{E}{c^2}
.\end{array}
