Twelve less than the product of three and a number is less than .

Let be a number.

Write an equation.

Twelve less than the product of three and a number is less than is .

Solve the inequality.

                         (Original inequality)

        (Add to each side)

                                (Apply additive inverse property: )

                           (Divide each side by )

                                  (Cancel common terms)

The solution set of the inequality is .