Answer:
(-1, 16), (3, 12)
These are my examples so if you want you can do different solutions, too!
Explanation:
It may sound weird, but there are infinitely many solutions to a linear equation. It's basically all real numbers that are on the line.
So, just choose two random numbers for the x-value and substitute in into the equation. I'm going to use -1 and 3.
x = 15 - y
when x = -1
-1 = 15 - y
y = 16
(-1, 16)
when x = 3
3 = 15 - y
y = 12
(3, 12)