The inequality is .

Apply addition property of inequality: Add 15 to each side.

            (Apply additive inverse property: )

                  (Apply additive identity property: )

                           (Add: )

Graph the solution set on a number line.

Note: A circle means that this point is not included in the solution set.

Check:

To check, substitute a number greater than 87 in .

                (Substitute )

                         (Substract: )

The inequality is true.

The inequality solution set is .