The inequality is .

                 (Product of two same signs is positive)

Apply subtraction property of inequality: Subtract 16 from each side.

          (Apply additive inverse property: )

                 (Apply additive identity property: )

                            (Subtract: )

Check:

To check, substitute a number less than 6 in .

          (Substitute w = 5)

                 (Product of two same signs is positive)

                        (Add: 5 + 16 = 21)

The inequality  is true.

The inequality solution set is .