document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1078152>Question 1078152</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this illustrated matrix problem. It's greatly appreciated.\r<BR>\n" );
document.write( "\n" );
document.write( "The flow of traffic through a network of streets is shown below (in vehicles per hour.)\r<BR>\n" );
document.write( "\n" );
document.write( "https://s24.postimg.org/asu4tpg5x/traffic_flow_problem.png  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #692639 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=692639\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Look at each node (circle).<BR>\n" );
document.write( "Flow in is positive, flow out is negative.<BR>\n" );
document.write( "The sum of the flows into a node equals zero.<BR>\n" );
document.write( "I'll do one, you do the rest.<BR>\n" );
document.write( "Look at the upper left node,<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=Fombitz&illustration_name=PS6.JPG\">.<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "So summing the flow for that node,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300-x%5B1%5D-x%5B2%5D=0 ALIGN=MIDDLE  ALT=\"300-x%5B1%5D-x%5B2%5D=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B1%5D%2Bx%5B2%5D=300 ALIGN=MIDDLE  ALT=\"x%5B1%5D%2Bx%5B2%5D=300\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Do the same for the other nodes.   </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );