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March 29, 2017

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Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places.

20 log(2x+2)=45

  • precalc/trig - ,

    log(2x+2) = 45/20 = 2.25
    assuming natural logs,

    2x+2 = e^2.25
    x = (e^2.25 - 2)/2

    x = 3.7439

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