Question

How do you solve the following system?: `-4x -y =-1, 6x -y = -1`

Answer 1

`y=1`
`x=0`

Explanation:

`-4x-y=-1` --- (1)
`6x-y=-1` --- (2)

From (1),
`-4x-y=-1`
`y=1-4x` --- (3)

Sub (3) into (2)
`6x-(1-4x)=-1`
`6x-1+4x=-1`
`10x=0`
`x=0` --- (4)

Sub (4) into (3)
`y=1-4(0)`
`y=1`