Question

4x+2y=7
x - 4y = 9 simultaneous linear equation ​

Answer 1

Answer:

4x+2y=7.........(1)

x-4y=9....... (2)

multiple by 4 in eqn 2

4x-16y=36.......(3)

now eqn1- eqn3,

18y=7-36=-29

y=-29/18

x=9+4y=9-58/9=21/9=7/3