document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150087>Question 150087</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of the coordinates of the solution to the system<BR>\n" );
document.write( "2x-y=7<BR>\n" );
document.write( "3x-2y=11 <BR>\n" );
document.write( "is? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110205 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=110205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "The sum of the coordinates of the solution to the system<BR>\n" );
document.write( "2x-y=7<BR>\n" );
document.write( "3x-2y=11 <BR>\n" );
document.write( "is?<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "What can that mean? Sum of coordinates?<BR>\n" );
document.write( "So solve for x and y by substition:<BR>\n" );
document.write( "From eqn 1, y = 2x-7<BR>\n" );
document.write( "Sub into eqn 2:<BR>\n" );
document.write( "3x - 2*(2x-7) = 11<BR>\n" );
document.write( "3x -4x +14 = 11<BR>\n" );
document.write( "-x = -3<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "Sub into either eqn<BR>\n" );
document.write( "2*(3) - y = 7<BR>\n" );
document.write( "6 -y = 7<BR>\n" );
document.write( "y = -1\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );