document.write( "Question 415204: 81=3^X How do you find X? \n" ); document.write( "

Algebra.Com's Answer #291126 by nerdybill(7384) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"81=3%5Ex\"$
\n" ); document.write( "take log base 3 of both sides:
\n" ); document.write( " $\"log%283%2C81%29=log%283%2C3%5Ex%29\"$
\n" ); document.write( " $\"log%283%2C3%5E4%29=log%283%2C3%5Ex%29\"$
\n" ); document.write( " $\"+4+=+x+\"$ \n" ); document.write( "

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