You are given a "system of equations"
We can apply the "elimination method" by simply adding both equations together. The idea is get rid of one of the variables. Notice, when we do this, we eliminate the x:
2y = 8
y = 4
Now, to find x, we substitute the above back into either of the two original equation (pick the simpler one):
2 = 2x
1 = x
Answer: x=1 and y=4