document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1152561>Question 1152561</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A textbook store sold a combined total of 327 chemistry and physics textbooks in a week. The number of physics textbooks sold was 77 less than the number of chemistry textbooks sold. How many textbooks of each type were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #774583 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=774583\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "x = chemistry books<BR>\n" );
document.write( "y = physics books<BR>\n" );
document.write( "x + y = 327<BR>\n" );
document.write( "x - y = 77<BR>\n" );
document.write( "Add together<BR>\n" );
document.write( "2x = 404<BR>\n" );
document.write( "x = 202<BR>\n" );
document.write( "Substitute x = 202 into x + y = 327<BR>\n" );
document.write( "202 + y = 327<BR>\n" );
document.write( "y = 327 - 202<BR>\n" );
document.write( "y = 125<BR>\n" );
document.write( "Physics books sold = 125<BR>\n" );
document.write( "Chemistry books sold = 202<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );