Question

If x +4y=1 and x+7y=4 then find in elimination method

Answer 1

X+4y=1---equation (i)

X+7y=4---equation (ii)

Solving both equations

X+4y=1

X+7y=4

(-) (-) (-)

___________

- 3y=-3

y=-3/-3

y=1

Putting the value of y in equation (i)

X+4*1=1

4-1=x

X=3

Therefore x=3 and y=1.