I don’t know how to do it.

Answer:
X= 0
Y= 2
Step-by-step explanation:
Use the elimination method.
Multiply the bottom row by negative one.
That will result in the same top but -x-2y=-4 on the bottom.
Add them together and you will get -4x= 0
X=0
Plug x in to find y. Make sure it works for both.
0+ 2(2)=4
2(2)=4
4=4
-3(0)+2(2)= 4
2(2)=4
4=4
Since it works for both, y=2