Step-by-step Answer
PAGE: 128SET: ExercisesPROBLEM: 28
Please look in your text book for this problem Statement

The equations are

                 Equation (1)

                       Equation (2)

Solve the second equation for p in terms of q.

Apply addition property of equality; if a = b, then a + c = b + c.

     (Add 4q to each side)

                (Apply Additive inverse property: )

                      (Apply Additive identity property: )

Combine like terms using distributive property: .

Apply division property of equality: if a = b, then.

           (Divide each side by 2)

                        (Cancel common terms)

Substitute  in Equation (2).

Distribute terms using distributive property: .

               (Multiply: )

                          (Apply Additive inverse property: )

                                (Apply Additive identity property: )

q = 0

Substitute in equation in equation .

                         (Apply zero product property: )

                               (Apply additive identity property: )

The solution is .


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