Answer
$\{d\ |\ d\leq3\}$
Work Step by Step
First, find the solution to the inequality.
$5+d\leq8\longrightarrow$ subtract 5 from each side
$5+d-5\leq8-5\longrightarrow$ subtract
$d\leq3$
Write the solution in set builder notation enclosed in braces.
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \{d\ |\ d\leq3\}$
variable $\hookleftarrow\ \ \ \ \ \hookrightarrow$ solution
