Question

What are x and y if `2y+x= - 4` and `y-x= - 5`?

Answer 1

`x=2,y=-3`

Explanation:

Note that
`y-x=-5`
`implies y =x-5`
Put value of `y` in `2y+x=-4`
`2(x-5)+x = -4`
`implies 2x-10+x=-4`
`implies 3x=6`
`implies x=2`
So `y = 2-5 =-3`