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5 February, 22:06

How do I work out this problem? Ln (5x-3) = Ln9-Ln (x-3)

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  1. 6 February, 00:00
    0
    Using the laws of logs, the equation can be simplified to:

    5x - 3 = 9 / (x - 3)

    Cross-multiplying gives:

    (5x - 3) (x - 3) = 9

    Expanding and rearranging, we get:

    5x^2 - 18x = 0

    which factorizes to:

    x (5x - 18) = 0

    Therefore x = 0, 3 3/5.
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