Let's begin by listing out the information given to us:
[tex]\begin{gathered} 4x+16=24 \\ \text{Subtract 16 from both sides, we have:} \\ 4x+16-16=24-16_{} \\ 4x=8 \\ \text{Divide both side by 4, we have:} \\ \frac{4x}{4}=\frac{8}{4}\Rightarrow x=2 \\ x=2 \end{gathered}[/tex]