The inequality equation is .

Apply division property of inequality: Divided each side by 2.5.

                 (Cancel Common terms)

                (Divide: )

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

              (Product of two same signs is positive)

                  (Product of two diffirent signs is negative) 

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 in .

            (Substitute  )

                          (Multiply:  )

The inequality is true.

The inequality solution is .