document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=787559>Question 787559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve this simultaneous logarithm.<BR>\n" );
document.write( "log (x-4)+ 2 log y = log 16<BR>\n" );
document.write( "log x + log y = 16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #478225 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=478225\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log (x-4)+ 2 log y = log 16<BR>\n" );
document.write( "log x + log y = 16<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "Modify for elimination:<BR>\n" );
document.write( "log(x-4) + 2log(y) = log(16)<BR>\n" );
document.write( "2log(x)  + 2log(y) = 32<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Subtract and solve for \"x\":<BR>\n" );
document.write( "2log(x) - log(x-4) = 32-log(16)<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "log(x^2) - log(x-4) + log(16) = 32<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "log[16x^2/(x-4)] = 32<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "16x^2/(x-4) = 10^32<BR>\n" );
document.write( "----<BR>\n" );
document.write( "16x^2 -10^32x -4*10^32 = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Solve for \"x\"; then solve for \"y\".<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );