Hi can some one go back to my Math logic problem and possibly give me one more example?

Question

thanx :)

I found a paper you may want your library to get for you:

http://cat.inist.fr/?aModele=afficheN&cpsidt=13604737

It is probably in the local college library. I wish I had a copy.

thanks but i got a better way to solve the problem. change the equation:

xy=x+y----> x=y/y-1

now i got lot's of answers thanks anyway