Question

How do solve the following linear system?: `x-7y=4 , -2x+5y=-3`?

Answer 1

`x=1/9,y=-5/9`

Explanation:

Multiplying the first equation by `2` and adding to the second:
`-9y=5`
so `y=-5/9`
Plugging this in the first equation
`x-7(-5/9)=4`
`x=4-35/9=(36-35)/9`
so `x=1/9`