Question

How do you solve the following system?: `4x +y =12 , 6x +5y = -2`

Answer 1

`x=31/7,y=-40/7`

Explanation:

Multiplying the first equation by `-5` and adding 5to the sond we get
`-14x=-62` so `x=31/7`
plugging this in the first equiation to compute `y`
`y=12-4*31/7`
so
`y=-40/7`