Question

How do you solve the system of equations `8x + 3y = 93` and `4x + 3y = 69`?

Answer 1

`y=15`
`x=6`

Explanation:

`8x+3y=93` --- (1)
`4x+3y=69` --- (2)

(1) minus (2)
`4x=24`
`x=6` --- (3)

Sub (3) into (2)
`4(6)+3y=69`
`24+3y=69`
`3y=45`
`y=15`