Answer
$n\gt-2.5$
Work Step by Step
$6n-3\gt-18$ $\longrightarrow$ add 3 to both sides
$6n-3+3\gt-18+3$ $\longrightarrow$ simplify
$6n\gt-15$ $\longrightarrow$ divide both sides by 6
$6n\div6\gt-15\div6$ $\longrightarrow$ simplify
$n\gt-2.5$
Check the inequality.
$6(5)-3\gt-18$
$30-3\gt-18$
$27\gt-18\checkmark$