Question

How do you solve the simultaneous equations `10x - 8y = 7` and `3x -2y = 2`?

Answer 1

I found:
`x=1/2`
`y=-1/4`

Explanation:

I would nultiply the second equation by `-4` and get:
`{10x-8y=7`
`{-12x+8y=-8` adding them:
`-2x+0=-1`
so:
`x=1/2`
substituting back into the first equation you get:
`10*1/2-8y=7`
`5-8y=7`
`-8y=2`
`y=-1/4`