The equality is

According to addition property of equality: Add 3 to each side.

                   (Additive inverse property: )

                         (Additive identity property: )

                               (Add: )

Graph the solution set o n a number line

Check:-

To check, substitute 24, in .

                       (Substitute )

                              (Sustract: )

The equality is true.

The equality solution is .