Question

solve the following simultaneous equations by using substitution method

Answer 1

In question 2

x+8y = 19

x=19-8y

2x+11y=28

putting x=19-8y in equation (II) we get

2 (19-8y)+11y=28

38-16y+11y =28

38-28=16y-11y

5y=10

y=2

putting y=2 in equation (I) we get

x+8 (2)=19

x+16=19

x=3

solve other examples in same way