Answer
$x=3$
Work Step by Step
$\begin{align*}
x+5-5&=8-5 &\text{Subtract 5 from each side of the equation.}\\
x&=3 &\text{Simplify}.
\end{align*}$
Check. if the solution is correct by substituting $3$ to the variable in the original equation:
$\begin{align*}
x+5&=8\\
3+5&\stackrel{?}{=}8\\
8&\stackrel{\checkmark}{=}8
\end{align*}$
Thus, the solution is $x=3$.