Question

Calculate the value of P and of Q that satisfy the following simultaneous linear equations.

Answer 1

1. 0.5p -3q =11
2. 5p +6q =2

1) ×-2

--> 3. -p +6q =-22

2) - 3)

6p =24

p =4

sub into 2)

5(4) +6q =2

20 +6q =2

6q =2 -20 =-18

q=-3