Explanation:
The initial expression is:
[tex]\frac{m}{4}-7=-3[/tex]To know the value of m, we need to solve the equation for m, so adding 7 to both sides of the equation, we get:
[tex]\begin{gathered} \frac{m}{4}-7+7=-3+7 \\ \frac{m}{4}=4 \end{gathered}[/tex]Then, we can multiply both sides by 4, so:
[tex]\begin{gathered} \frac{m}{4}\times4=4\times4 \\ m=16 \end{gathered}[/tex]