document.write( "Question 473408: How would you solve this :\r
\n" ); document.write( "\n" ); document.write( "log (4+x) - log (x-4)= log 3\r
\n" ); document.write( "\n" ); document.write( "I don't even know where to begin , I've never seen a logarithmic equation set up equal to log 3 .
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Algebra.Com's Answer #324647 by ccs2011(207)\"\" \"About 
You can put this solution on YOUR website!
Use log property: \"log+a+-+log+b+=+log+%28a%2Fb%29\" to combine left side into a single log.
\n" ); document.write( "\"log+%28%284%2Bx%29%2F%28x-4%29%29+=+log+3\"
\n" ); document.write( "Rewrite equation in exponential form, Or notice that if log(a)=log(b) then a=b
\n" ); document.write( "\"%284%2Bx%29%2F%28x-4%29+=+3\"
\n" ); document.write( "Multiply by (x-4) on both sides
\n" ); document.write( "\"4%2Bx+=+3%28x-4%29\"
\n" ); document.write( "Distribute
\n" ); document.write( "\"4%2Bx+=+3x+-+12\"
\n" ); document.write( "Subtract 3x on both sides
\n" ); document.write( "\"4+-+2x+=+-12\"
\n" ); document.write( "Subtract 4 on both sides
\n" ); document.write( "\"-2x+=+-16\"
\n" ); document.write( "Divide by -2 on both sides
\n" ); document.write( "\"x+=+8\"
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