document.write( "Question 457495: how do you re-write 3^x=90 as a logarithm and solve it? \n" ); document.write( "

Algebra.Com's Answer #313900 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+3%5Ex+=+90+\"$
\n" ); document.write( " $\"+x%2Alog%283%29+=+log%2890%29+\"$
\n" ); document.write( " $\"+x+=+log%2890%29+%2F+log%283%29+\"$
\n" ); document.write( " $\"+x+=+1.9542+%2F+.4771+\"$
\n" ); document.write( " $\"+x+=+4.096+\"$
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+3%5E4.096+=+90+\"$
\n" ); document.write( " $\"+90.009+=+90+\"$
\n" ); document.write( "close enough \n" ); document.write( "

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