The inequality is

Apply division property of inequality: Divide each side by 16.

                   (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 dot means that this point is included in the solution set.

Check:

To check, substitute a number less than or equal to in inequality .

           (Substitute )

                      (Multiply: )

The inequality is true.

The inequality solution is .