The inequality is .

Apply subtraction property of inequality: Subtract 7 from each side.

       (Apply additive inverse property:  )

             (Apply additive identity property: )

                   (Subtract: )

Apply division property of inequality: Divide each side by 3.

                  (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.

The inequality solution set is .