document.write( "Question 847955: solve for x: 15^-9x=7 \n" ); document.write( "

Algebra.Com's Answer #510790 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"15%5E%28-9x%29=7\"$
\n" ); document.write( " $\"-9x=log%2815%2C7%29\"$
\n" ); document.write( " $\"x=-%281%2F9%29%2Alog%2815%2C7%29\"$
\n" ); document.write( " $\"x=-%28log%287%29%29%2F%289%2Alog%2815%29%29\"$ \n" ); document.write( "

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