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math trig

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ln(2x-5)= 4

how do i this problem? thanks!

  • math trig -

    ln(2x-5) = 4
    we raise both sides by e:
    e^(ln(2x-5)) = e^4
    the e and ln will be cancelled, leaving only the 2x - 5:
    2x - 5 = e^4
    2x = e^4 + 5
    x = (e^4 + 5)/2

    hope this helps~ :)

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