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Homework Help: Simultaneous equations using exponential functions

  1. Apr 7, 2010 #1
    1. The problem statement, all variables and given/known data

    Solve the following equations using simultaneous equations

    2. Relevant equations

    32x[tex]\times[/tex]23y=17

    4x[tex]\times[/tex]5y=37

    Appologies for the bad equation set-up. The large 'x' is a multiplication sign.


    3. The attempt at a solution
    My attempt was to divide both of the equations together and then solve for x and y respectively, using the laws of logarithms.

    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Apr 7, 2010 #2

    ehild

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    Homework Helper

    What about taking the logarithm of both equations?

    ehild
     
  4. Apr 7, 2010 #3

    HallsofIvy

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    Science Advisor

    Excellent suggestion!
     
  5. Apr 7, 2010 #4
    Yes, i tried this. However the answer i get does not match the answer set in the textbook!
     
  6. Apr 7, 2010 #5

    ehild

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    Homework Helper

    Show your work.

    ehild
     
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