document.write( "Question 403720: 7^-x=70 \n" ); document.write( "

Algebra.Com's Answer #285458 by nerdybill(7384) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"7%5E%28-x%29=70\"$
\n" ); document.write( "take log base 7 of both sides:
\n" ); document.write( " $\"-x=log%287%2C70%29\"$
\n" ); document.write( " $\"x=-log%287%2C70%29\"$
\n" ); document.write( " $\"x=-log%2870%29%2Flog%287%29\"$
\n" ); document.write( " $\"x=-2.1833\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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