Question

How do solve the following linear system?: `x= y - 11 , -8x + y = 2`?

Answer 1

I found:
`x=9/7`
`y=86/7`

Explanation:

Let us take the first equation and substitute into the second for `x`:
`-8(color(red)(y-11))+y=2`
solve for `y`:
`-8y+88+y=2`
`7y=86`
so `y=86/7`
substitute this back into the first equation:
`x=86/7-11=9/7`