Question

How do you solve the system 6x-y=-145 and x=4-2y?

Answer 1

`x=-22,y=13`

Explanation:

Plugging `x=4-2y` in the first equation we get
`6(4-2y)-y=-145`
expanding
`24-12y-y=-145`
so
`-13y=-169`

so

`y=13`

we get `x` as

`x=4-26`

`x=-22`