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remidia

  • 4 years ago

Solve the equation ln(x + 1) - ln(9) = ln(4) + ln(x - 3) for x. A) 2.86 B) 3.11 C) 3.36 D) 3.61 E) 3.86

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  1. inik
    • 4 years ago
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    use properties of ln: ln((x+1)/9)=ln(4*(x-3)) so, (x+1)/9 = 4*(x-3) simplify & solve for x

  2. aama100
    • 4 years ago
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    x = 13/4

  3. aama100
    • 4 years ago
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    = 3.25

  4. remidia
    • 4 years ago
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    which is none of the answers D:

  5. aama100
    • 4 years ago
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    I got my equation wrong and didn't look at the options first

  6. remidia
    • 4 years ago
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    I got it, its 3.11 :) thanks for the help!

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