document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159602>Question 1159602</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A+B=10<BR>\n" );
document.write( "C/D=4<BR>\n" );
document.write( "A+C=3<BR>\n" );
document.write( "B+D=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #782671 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782671\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "(1) From the second given equation, C = 4D.<br><BR>\n" );
document.write( "(2) Add the last two given equations to get A+B+C+D = 12.  Then since the first equation tells us A+B=10, we know C+D = 2.<br><BR>\n" );
document.write( "(3) Now substitute the result from (1) in (2).  4D+D = 2.  D = 2/5.<br><BR>\n" );
document.write( "Once you have the value of that one variable, it will be easy to find the values of the others.<br><BR>\n" );
document.write( " </SPAN>\n" );
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