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February 28, 2015

February 28, 2015

Posted by **Anonymous** on Sunday, October 5, 2008 at 5:12pm.

solve for x

5^(x-1) = 9

- math -
**bobpursley**, Sunday, October 5, 2008 at 5:16pmtake the log base 5 of each side

x-1=log5 9=log10 9 /( log10 5)

http://www.sosmath.com/algebra/logs/log4/log43/log43.html

- math -
**Anonymous**, Sunday, October 5, 2008 at 5:25pm?

can i do

x-1= log9/log6

x=(log9/log5) + 1 ?

- math -

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