Question

4p+3q = 9
2p+3q = 3 Solve the simultaneous equation using elimination method

Answer 1

4p + 3q = 9 – 1

2p + 3q = 3 – 2

( – ) ( – ) ( – )

___________

2p = 6

p = 3

put p = 3 in equation 1 we get

4 ( 3 ) + 3q = 9

12 + 3q = 9

3q = 9 – 12

3q = – 3

q = – 1