1. The problem statement, all variables and given/known data 1) [(1/y2)-x2]/[(1/x2)-y2]=? 2) what is the sum of the solutions, x+y, in the following system of equations? x/y=1/2 (x+2)/(y-9)=-4/5 3. The attempt at a solution 1) I started by separating the numerator of the initial big fractionk trying to simplify but failing. However, i did get to the point where I had to separated fractions with the same denominator, but it was a fail because I was just doing a round trip, lol. 2) I defined x in terms of y and plugged it in into the (x+2)/(y-9)=-4/5 equation, being as careful as I could with having all addingg/subtracting terms with the same denominator, careful about signs etc. But I'm just doing something wrong. BTW, I'm already a college freshman, I already passed algebra back in 9th and 10th, but Im just loosing the rhythm for this stuff and I don't want that, so any help is appreciated, thanks (just tell me wich is the best path to start with if you can, thanks).