Question

Can someone please help ASAP???

Answer 1

y = -5

Explanation:

To solve this, we simply plug in 4 into x and then solve for y. We have:

`-3x+9y=-57\\`

Now we put 4 into x and do some algebra and solve for the value of y:

`-3x+9y=-57\\-3(4)+9y=-57\\-12+9y=-57\\9y=-57+12\\9y=-45\\y=(-45)/(9)\\y=-5`

So y = -5