document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288107>Question 288107</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the systems by substitution  x+2y=7<BR>\n" );
document.write( "                                   2x+2y=13     </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #208798 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=208798\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the first equation for x and plug the result in for x in the second equation.<BR>\n" );
document.write( "x+2y=7<BR>\n" );
document.write( "x=7-2y<BR>\n" );
document.write( "plug 7-2y in for x in the 2nd<BR>\n" );
document.write( "2*(7-2y)+2y=13<BR>\n" );
document.write( "now solve for y<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );