document.write( "Question 735011: Solve log base 2 of 3x + log base 2 of 4 equals 5 \n" ); document.write( "

Algebra.Com's Answer #449244 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+log%28+2%2C3x+%29+%2B+log%28+2%2C4+%29++=+5+\"$
\n" ); document.write( "Make this substitution:
\n" ); document.write( " $\"+5+=+log%28+2%2C+32+%29+\"$
\n" ); document.write( " $\"+log%28+2%2C3x+%29+%2B+log%28+2%2C4+%29++=+log%28+2%2C32%29+\"$
\n" ); document.write( " $\"+log%28+2%2C+4%2A3x+%29++=+log%28+2%2C32+%29+\"$
\n" ); document.write( " $\"+12x+=+32+\"$
\n" ); document.write( " $\"+x+=+8%2F3+\"$
\n" ); document.write( "-----------
\n" ); document.write( "check:
\n" ); document.write( " $\"+log%28+2%2C3%2A%288%2F3%29+%29+%2B+log%28+2%2C4+%29++=+5+\"$
\n" ); document.write( " $\"+log%28+2%2C8+%29+%2B+log%28+2%2C4+%29++=+5+\"$
\n" ); document.write( " $\"+3+%2B+2+=+5+\"$
\n" ); document.write( " $\"+5+=+5+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );