SOLUTION: Ln x - Ln(x-9)=Ln 9

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Question 171126: Ln x - Ln(x-9)=Ln 9
Answer by oscargut(2103) About Me  (Show Source):
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Ln x - Ln(x-9)=Ln 9
then
ln(x/(x-9)=Ln9
x/(x-9)=9
then
x=9(x-9)=9x-81
8x-81=0
x=81/8