The equality is

Apply subtraction property of equality: Subtract 6 from each side.

                       (Additive inverse property: )

                             (Additive identity property: )

                                   (Subtract: )

                              (Divide each side by 4)

                                   (Cancel common terms)

                                        (Divide: )

Graph the solution set o n a number line

Check:

To check, substitute 4, in .

                              (Multiply: )

                                            (Add: )

The equality solution is .