## Algebra: A Combined Approach (4th Edition)

{$\frac{\log 5}{\log 9}$}, {$0.7325$}
$9^{x}=5$ $\log 9^{x}=\log 5$ $x\log 9=\log 5$ $x=\frac{\log 5}{\log 9}\approx\frac{0.698970}{0.954243}\approx0.7325$ The exact solution is {$\frac{\log 5}{\log 9}$} while the solution to 4 decimal places is {$0.7325$}.