SOLUTION: find exact solution to equation 3^x+5=9^x This is what I did 3^x+5=3^3x x+5=3x 5=2x =5/2

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: find exact solution to equation 3^x+5=9^x This is what I did 3^x+5=3^3x x+5=3x 5=2x =5/2      Log On


   

Question 63048: find exact solution to equation 3^x+5=9^x
This is what I did
3^x+5=3^3x
x+5=3x
5=2x
=5/2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find exact solution to equation 3^(x+5)=9^x
3^(x+5)=3^(2x)
x+5=2x
x=5
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Cheers,
Stan H.