1. Not finding help here? Sign up for a free 30min 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!

Solving for x with natural logs

  1. Aug 26, 2007 #1
    Hi
    Im having difficulty solving for x in this equation.
    5=9ln(x+4)
    I have no idea where to start so i can't show u any working.
     
  2. jcsd
  3. Aug 26, 2007 #2
    can you show at least one step? there is at least one very easy step that you could do.

    question: if i ask u to find ln(x+2) = 3, how can you get rid of ln?
     
    Last edited: Aug 26, 2007
  4. Aug 26, 2007 #3
    Take another look and don't get bogged down in details until youve done some basic simplification. Work from the outside in and you should be able to rearrange this into something you're much more happy to deal with.

    Roco covered it pretty well when he told you there was one easy step you could do =-)
     
  5. Aug 27, 2007 #4
    raise e to the power of 3?
     
  6. Aug 27, 2007 #5
    yep

    [tex]\exp^{\frac{5}{9}}=(x+4)[/tex]

    now just solve for x
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Solving for x with natural logs
  1. Natural Log (Replies: 4)

Loading...