yes I know but will not give answer because you have not say that
Answer:
I think its 7.5 but I might be wrong
Step-by-step explanation:
X and Y can almost be any number and long as the statement 'equal to' is true the equation is correct.
First you need to simplify the left side of the equation to get

Then you add by two on both sides to get

Finally you divide by 2 on both sides to get