document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1206099>Question 1206099</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A textbook store sold a combined total of 215 psychology and history textbooks in a week. The number of psychology textbooks sold was 57 more than the number of history 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 #843320 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=843320\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A textbook store sold a combined total of 215 psychology and history textbooks in a week. The number of psychology textbooks sold was 57 more than the number of history textbooks sold. How many textbooks of each type were sold?\r<BR>\n" );
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document.write( "Psycology books sold be x\r<BR>\n" );
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document.write( "History books sold be y\r<BR>\n" );
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document.write( " store sold a combined total of 215 psychology and history textbooks in a week.\r<BR>\n" );
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document.write( "x+y=215.....................................(1)\r<BR>\n" );
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document.write( " store sold a combined total of 215 psychology and history textbooks in a week.\r<BR>\n" );
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document.write( "x=y+57<BR>\n" );
document.write( "x-y=57.........................................(2)\r<BR>\n" );
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document.write( "add 1 & 2\r<BR>\n" );
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document.write( "2x = 272\r<BR>\n" );
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document.write( "x= 272/2= 136\r<BR>\n" );
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document.write( "215-136=79\r<BR>\n" );
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document.write( "79 history textbooks and 136 psychology textbooks were sold.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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