The inequality is .

Apply multiplication property of inequality:

Multiply each side by negative 4.5 and flip the symbol.

                      (Cancel common terms)

                                         (Multiply: )

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 45  in equality .

                     (substitute: x = 45)

                          (Divide: )

The inequality is true.

The inequality solution is .