Step-by-step Answer
PAGE: 149SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

The equation is .

  (Add 7 to each side)

        (Apply additive inverse property: )

              (Apply additive identity property: )

                  (Add: )

             (Divide each side by 2)

                  (Cancel common terms)

                       (Divide: )


To check the solution, substitute in original equation.

               (Multiply: )

                       (Subtract: )

The statement is true.

The value of .


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