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Homework Help: Solve for x

  1. Jan 26, 2009 #1
    1. The problem statement, all variables and given/known data
    x/(.12 + x) =1/3


    2. Relevant equations
    x/(.12 + x) =1/3


    3. The attempt at a solution
    x/(.12 + x) = 1/3

    I plugged .6 at x to give me. which gave me .6/(.12+.6) = .6/.18 = 1/3
    so i know x =.6 but there got to be a simple way of doing this
     
  2. jcsd
  3. Jan 26, 2009 #2
    Start by multiplying both sides of the equation by the denominator (.12 + x).


    01
     
  4. Jan 26, 2009 #3
    Thanks
     
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