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March 25, 2017

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solve the equation
log (4x)= log5 + log(x-4)

  • math/ algebra - ,

    Log(4x) -log(x -4) = log5

    4x/x-4 = 5
    4x = 5(x-4)
    4x =5x -20
    4x -5x 5x -5x -20
    -1x = -20
    x = 20

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