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math help

Discussion in 'DAT Discussions' started by BodybldgDoc, Apr 23, 2007.

  1. BodybldgDoc

    BodybldgDoc Guest

    712
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    Jan 13, 2007
    In your closet
    Solve for x: 27^2x=3^3x-5
    How do you solve this?
     
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  3. slashnroses19

    slashnroses19 10+ Year Member

    178
    7
    Sep 3, 2006
    look at the 27. what number to what power makes 27? 3^3. so both sides have 3 as a common base now. so now you can set the exponents on both sides equal to each now. so it would be 3(2x)=3x-5 .....3x= -5....x=-5/3

    trying to redeem my dat math score :p
     
  4. BodybldgDoc

    BodybldgDoc Guest

    712
    0
    Jan 13, 2007
    In your closet
    thanks slash. :horns:
     

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