document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=762900>Question 762900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of 3 books and 2 pencils is Rs. 18. The cost of 2 books and 3 pencils is Rs. 12. Find the total cost for a book and a pencil. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464291 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=464291\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Simultaneous Equations:<BR>\n" );
document.write( "A book = x<BR>\n" );
document.write( "A pencil = y<BR>\n" );
document.write( "3x + 2y = 18...1<BR>\n" );
document.write( "2x + 3y = 12...2<BR>\n" );
document.write( "Multiply (1) by 3<BR>\n" );
document.write( "and (2) by 2<BR>\n" );
document.write( "9x + 6y = 54...3<BR>\n" );
document.write( "4x + 6y = 24...4<BR>\n" );
document.write( "Subtract (4) from (3)<BR>\n" );
document.write( "5x      = 30<BR>\n" );
document.write( " x      = 6<BR>\n" );
document.write( "Substitute x = 6 into (1)<BR>\n" );
document.write( "3x + 2y = 18...1<BR>\n" );
document.write( "18 + 2y = 18<BR>\n" );
document.write( "     2y = 18 -18<BR>\n" );
document.write( "      y = 0<BR>\n" );
document.write( "Book costs Rs6 Pencil costs nothing.<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );