It's been a long time since I had to do any algebra, and nothing I've found on Google seems to be pitched at the right level for me. I'm looking to find a number for 'x' and a number for 'y' (consistant across these two equations):

(1/3) * (5/113) * (x/y) = 0.05

2/3 + ((1/3) * (5/113) * ((y-x)/y)) = 0.63

Can anyone please help me out? Thanks!