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Thread: Solve for x?

  1. October 12th 2009, 10:35 AM #1
    tsmith
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    Solve for x?

    Solve for x: ln(2x - 1) = 0

    So I am not sure how to solve this. Any help?
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  2. October 12th 2009, 10:38 AM #2
    earboth
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    Quote Originally Posted by tsmith View Post
    Solve for x: ln(2x - 1) = 0

    So I am not sure how to solve this. Any help?
    Use both sides as exponents to the base e:

    e^{\ln(2x-1)} = e^0

    2x-1 = 1

    I'll leave the rest for you.
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  3. October 12th 2009, 10:40 AM #3
    tsmith
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    So x = 1?
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  4. October 12th 2009, 10:51 AM #4
    earboth
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    Quote Originally Posted by tsmith View Post
    So x = 1?
    Correct!
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