document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=971593>Question 971593</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A textbook store sold a combined total of <BR>\n" );
document.write( "413<BR>\n" );
document.write( " psychology and math textbooks in a week. The number of math textbooks sold was <BR>\n" );
document.write( "55<BR>\n" );
document.write( " less than the number of psychology textbooks sold. How many textbooks of each type were sold?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594014 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=594014\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A textbook store sold a combined total of 413 psychology and math textbooks in a week. <BR>\n" );
document.write( "The number of math textbooks sold was 55 less than the number of psychology textbooks sold.<BR>\n" );
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document.write( "How many textbooks of each type were sold?<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "p + m = 413<BR>\n" );
document.write( "m = p-55<BR>\n" );
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document.write( "Substitute for \"m\" and solve for \"p\"::<BR>\n" );
document.write( "p + p-55 = 413<BR>\n" );
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document.write( "2p = 468<BR>\n" );
document.write( "----<BR>\n" );
document.write( "p = 234 (# of psychology books)<BR>\n" );
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document.write( "m = p-55 = 179 (# of math books)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );