34

Step-by-step Answer
PAGE: 417SET: ExercisesPROBLEM: 34
Please look in your text book for this problem Statement

The equation is .

Distribute terms using distributive property: .

                     (Multiply: )

Apply addition property of equality: If a = b then a + b = b + a.

               (Apply additive inverse property: )

                     (Apply additive identity property: )

                          (Add: )

Apply division property of equality: If a = b then .

                     (Divide each side by 2)

                           (Cancel common terms)

                             (Divide: )

Check:

To check the solution, and substitute x = 12, in .

                (Substitute )

                        (Subtract )

                            (Multiply: )

The equation is true.

The solution of .



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