The answer is (5,-3) I hope this helps you!
Not sure if your the same person but I had already done the work for this problem....
Not sure what we are solving, please eloborate on what you need solved, for now I can’t answer
So what you asked this is what I got
x(y) = 4.5
If x= 0.5 then
0.5(y) = 4.5
y=9
x(y) = 4.5
10(y) = 4.5
y= 0.45
hope this helps :)