Question

Simultaneous Equations - 5p-2q=9 3p+2q=7

Answer 1

Apnswer:

p = 1

q = -2

Explanation:

5p - 2q = 9 eqn 1

3p + 2q = 7 eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2