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Solving for x

  1. Aug 9, 2009 #1
    1. The problem statement, all variables and given/known data

    Hi .

    I found this in my textbook. I want to know how they got to the answer. I really dont know how they got it.

    [tex]\frac{\frac{x}{2}}{0.40-\frac{x}{2}}[/tex]= 6.8 x 10-2
    x= 0.0272 - 0.068x
    x= 0.025

    2. Relevant equations
    N/A


    3. The attempt at a solution
    i just dont know where to start or how to solve this.
     
    Last edited: Aug 9, 2009
  2. jcsd
  3. Aug 9, 2009 #2
    Multiply both sides by 0.4-x/2
     
  4. Aug 9, 2009 #3
    thanks...cant believe the solution was so simple...sometimes the easiest things become so mind boggling
     
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