The inequality is .

Apply addition property of inequality: Add 12 to each side.

          (Additive inverse property: )

                  (Additive identity property: )

                               (Add: )

             (Multiply each side by 5)   

                    (Cancel common terms) 

                       (Multiply:)

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 -30, in .

        (Substitute: m=30)

            (Divide: )

                 (Subtract:)

The inequality is true.

The inequality solution set is .