document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=989589>Question 989589</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Need help with setting up equation for...Mary bought 2 notebooks and 3 pens for $14.50. Dan bought 1 notebook and 2 pens for $7.50. How much does one notebook cost? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #609876 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=609876\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Need help with setting up equation for...Mary bought 2 notebooks and 3 pens for $14.50. Dan bought 1 notebook and 2 pens for $7.50. How much does one notebook cost? <BR>\n" );
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document.write( "2n + 3p = 14.50<BR>\n" );
document.write( "n  + 2p = 7.50<BR>\n" );
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document.write( "Modify for elimination::<BR>\n" );
document.write( "2n + 3p = 14.50<BR>\n" );
document.write( "2n + 4p = 1500<BR>\n" );
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document.write( "Subtract and solve for \"p\"::<BR>\n" );
document.write( "p = $0.50 (cost of one pen)<BR>\n" );
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document.write( "Solve for \"n\":<BR>\n" );
document.write( "n + 2p = 7.50<BR>\n" );
document.write( "n + 2*0.5 = 7.50<BR>\n" );
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document.write( "n + 1 = 7.50<BR>\n" );
document.write( "n = $6.50 (cost of one notebook)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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