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Log8 4 + log16 2 x log 27 81= x solve for x

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    Log8 4 = 2/3 since 8^2/3 = 4
    Log16 2 = 1/4 since 16^1/2 = 2
    Log27 81 = 4/3 since 27^4/3 = 81

    The sum of those logs is x, which equals 6.25

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