Question

How do solve the following linear system?: `x/2 - y = -1 , 19x-2y=-16`?

Answer 1

`x=-7/9, y=11/18`

Explanation:

Multiply the first equation by -2
`-x+2y=2`
`19x-2y=-16`

`18x=-14=>x=-7/9`
`x/2-y=-1`
`y=x/2+1`
`y=-7/18+1=>y=11/18`