The inequality equation is .

Apply divison property of inequality: Divide each side by 6.

              (Cancel common terms)

                (Divide: )

   (Multily each side by negitive 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 less than 12 in .

          (Substitute  )

              (Multiply:  )

The inequality is true.

The inequality solution is .