The inequality is  

Apply Divison property of inequlity: Divide each side by  15.

                      (Cancel common terms)

                          (Divide: )

              (Multiply each side by negative one and flip the symbol) \ \

                         (Product of two same signs is positive) \ \

Graph the solution set on a number line.

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

Check:

To check, substitute a number less than , in .

               (Substitute  )

                             (Multiply:  )

The inequality is true.

The inequality solution is .