Question

How do you solve the linear system using substitution `x =17 - 4y`, and `y = x-2`?

Answer 1

Substitute `x=17-4y` into the second equation so you get:
`y=17-4y-2`
`5y=15`
`y=3`
Substitute this values of `y` back into the first equation to get:
`x=17-4*3=17-12=5`
So your solution is:
`x=5`
`y=3`