Question

Solve the following simultaneous linear equations by the elimination method.

2p - 3q = 13
p - 3q = 2​

Answer 1

p=11 q=3

Explanation:

subtract second from first

2p-3q=13

-p+3q=-2

p=11

plug in

11-3q=2

-3q=-9

q=3

Answer 2

p = 11 q = 3

Explanation:

2p - 3q = 13

- p - 3q = 2

p = 11

p - 3q = 2​

(11) - 3q = 2

-3q = -9

q = 3