Calculate: (m-3)/(2) <= 5

Expression: $\frac{ m-3 }{ 2 } \leq 5$

Multiply both sides of the inequality by $2$

$m-3 \leq 10$

Move the constant to the right-hand side and change its sign

$m \leq 10+3$

Add the numbers

$\begin{align*}&m \leq 13 \\&\begin{array} { l }m \in \left\langle-\infty, 13\right]\end{array}\end{align*}$