document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=374619>Question 374619</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve logarithmic equation       \r<BR>\n" );
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document.write( "log(3+x)-log(x-4)=log2 </SPAN>\n" );
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document.write( "log(3+x)-log(x-4)=log2<BR>\n" );
document.write( "  Sol'n:<BR>\n" );
document.write( "   from log a - log b = log (a/b)<BR>\n" );
document.write( "  then, <BR>\n" );
document.write( "   log [(3+x)/(x-4)]= log 2, then take the antilog on both side,<BR>\n" );
document.write( "   3+x/x-4 = 2<BR>\n" );
document.write( "   3+x = 2(x-4)<BR>\n" );
document.write( "   3+x = 2x-8<BR>\n" );
document.write( "   x = 11 ---answer </SPAN>\n" );
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