Question

How do you solve the following system: `y=4x+4, 5x-2y=-26`?

Answer 1

`y=28`
`x=6`

Explanation:

`y=4x+4` --- (1)
`5x-2y=-26` --- (2)

Sub (1) into (2)

`5x-2(4x+4)=-26`
`5x-8x-8=-26`
`-3x-8=-26`
`3x=18`
`x=6` --- (3)

Sub (3) into (1)

`y=4(6)+4`
`y=28`