Algebra 2, 2008
28

 PAGE: 128 SET: Exercises PROBLEM: 28

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.

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: )

q = 0

Substitute in equation in equation .

(Apply zero product property: )

The solution is .

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