answer this I’m elimination using addition and subtraction form

Answer:
(0,-4)
Step-by-step explanation:
x-y = 4
2x+y = -4
Add these together to eliminate y
x-y = 4
2x+y = -4
-------------------
3x = 0
Divide by 3
3x/3 = 0/3
x = 0
Now we need to find t
2x+y = -4
0+y = -4
y= -4