Posted by Anonymous on Sunday, October 5, 2008 at 5:12pm.
logarithms
solve for x
5^(x1) = 9

math  bobpursley, Sunday, October 5, 2008 at 5:16pm
take the log base 5 of each side
x1=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
x1= log9/log6
x=(log9/log5) + 1 ?