The answer is 1 25/56
I hope this helps!
X + y = -15. Subtract x from both sides.
y = -x - 15. This is as far as we can go with the provided information.
The only things you can factor out of here is a 3 so you are left with:
3(y-6)
Hope that helps.
It is 3/12 and when you reduce it, it become 1/4