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remidia Group Title

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

  • 3 years ago
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  1. inik Group Title
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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

    • 3 years ago
  2. aama100 Group Title
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    x = 13/4

    • 3 years ago
  3. aama100 Group Title
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    = 3.25

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

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

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

    • 3 years ago
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