The inequality  is .

Apply divison  property of inequality: Divide each side by 2.

                 (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 solution set.

Check:

To check, substitute a number greater than in .

       (Substitute )

                  (Multiply: )

The inequality is true.

The inequality solution is .