Question

Solve the following system by the comparison method.

2p + q = 1

9p + 3q + 3 = 0

What is the solution set?

{(-2, -5)}
{(2, -5)}
{(-2, 5)}

Answer 1

3p=1

p=1/3

9p+3p+3=0

12p+3=0

12p=3

p=3/12

p=4