document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=450838>Question 450838</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve the system by graphing x+y=21 and x-y=3? How do I figure out the point that lies on both lines? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #310116 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=310116\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> They're both straight lines, so 2 points are needed.<BR>\n" );
document.write( "x+y=21<BR>\n" );
document.write( "Pick 2 values for x and find y.<BR>\n" );
document.write( "Plot the 2 points and draw a line thru them.<BR>\n" );
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document.write( "x-y=3<BR>\n" );
document.write( "Do the same for this one.<BR>\n" );
document.write( "Where the 2 lines cross is the point that lies on both lines.<BR>\n" );
document.write( " </SPAN>\n" );
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