document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=961920>Question 961920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At a fast food restaurant, one burger, one order of fries, and one drink cost $5; three burgers, two orders of fries, and two drinks cost $12.50; and two burgers, four orders of fries, and three drinks cost $14. Find the cost of one burger. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #587703 by </B><A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><B>amarjeeth123(569)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=587703\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the cost of one burger be x.<BR>\n" );
document.write( "Let the cost of one order of fries be y.<BR>\n" );
document.write( "Let the cost of one drink be z.<BR>\n" );
document.write( "x+y+z=5...........equation 1<BR>\n" );
document.write( "3x+2y+2z=12.50....equation 2<BR>\n" );
document.write( "2x+4y+3z=14.......equation 3<BR>\n" );
document.write( "Multiplying equation 1 by 2 we get<BR>\n" );
document.write( "2x+2y+2z=10.......equation 4<BR>\n" );
document.write( "Subtracting equation 4 from equation 2 we get,<BR>\n" );
document.write( "3x+2y+2z-2x-2y-2z=12.5-10<BR>\n" );
document.write( "x=2.5<BR>\n" );
document.write( "The cost of one burger is $2.50. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );