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

Algebra ->  Algebra  -> Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Ln x - Ln(x-9)=Ln 9      Log On

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 171126: Ln x - Ln(x-9)=Ln 9
Answer by oscargut(686) About Me  (Show Source):
You can put this solution on YOUR website!
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