Question

How do you solve the system `7x+2y=24` and `8x+2y=30`?

Answer 1

`x=6, y=-9`

Explanation:

Subtract equation one from equation two

`x+o=6`

Put `x=6` into `7x+2y=24`

`=> 42+2y=24`

`2y=-18`

`y=-9`