Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Solve for x

  1. Dec 7, 2004 #1
    I know you have to take ln of both sides but i am having trouble doing that for the right side.
  2. jcsd
  3. Dec 7, 2004 #2


    User Avatar
    Science Advisor
    Homework Helper

    Remember the property of logarithms, ln(ab)=ln(a)+ln(b). That should help you deal with the right hand side.
    Last edited: Dec 7, 2004
  4. Dec 7, 2004 #3


    User Avatar
    Science Advisor
    Homework Helper

    I could give u the only hint possible,but that would be useless.So i'll better show u my version.Logarithmate both sides of the equation to find:
    [tex] x\ln 2=\ln 7+x\ln 5 =>x=\frac{\ln 7}{\ln 2-\ln 5} [/tex].


    PS:Shmoe,u were quicker than me...Again. :tongue2:
  5. Dec 7, 2004 #4
    Yeah thanks alot i was messing up and having ln7*xln5
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook