1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A strange question

  1. Feb 8, 2006 #1
    One of my friends asked me this, and I have no idea how to get the answer. I don't even know if there is an answer... if someone could help, that'd be great:

    xy = x/y = x-y

    If y cannot equal 0, what is the value of x and y?

    Thanks :D
  2. jcsd
  3. Feb 8, 2006 #2
    Unless I goofed in the calculation, x is -1/2 and y is -1. Work out xy = x/y to see that y is either +1 or -1, then work out the subtraction.
  4. Feb 8, 2006 #3
    Wow, it works! Thanks =)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook