document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=763163>Question 763163</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5 pencils and 7 pens together cost rs.195. While 7 pencils and 5 pens together cost rs.153. Find the cost of each pencil and the pen. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464595 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=464595\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pencils = x<BR>\n" );
document.write( "Pens = y<BR>\n" );
document.write( "5x + 7y = 195...1<BR>\n" );
document.write( "7x + 5y = 153...2<BR>\n" );
document.write( "Multiply (1) by 5<BR>\n" );
document.write( "Multiply (2) by 7<BR>\n" );
document.write( "25x + 35y = 975...3<BR>\n" );
document.write( "49x + 35y = 1071..4<BR>\n" );
document.write( "subtract (3) from (4)<BR>\n" );
document.write( "24x       = 96<BR>\n" );
document.write( "  x       = 4<BR>\n" );
document.write( "Substitute x = 4<BR>\n" );
document.write( "into (1)<BR>\n" );
document.write( "5x + 7y = 195<BR>\n" );
document.write( "20 + 7y = 195<BR>\n" );
document.write( "     7y = 195 - 20<BR>\n" );
document.write( "     7y = 175<BR>\n" );
document.write( "      y = 25<BR>\n" );
document.write( "So, Pencils cost rs 4<BR>\n" );
document.write( "    Pens cost rs 25<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );