SOLUTION: how do you solve the logarithmic equation log9(x-6)+log9(x-6)=1

Question 685646: how do you solve the logarithmic equation log9(x-6)+log9(x-6)=1
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The trick is to make the substitution:

---------
Only is valid. If you plug in
, then

You can't have a log to a positive base
that gives you a negative number

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