document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=844196>Question 844196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A new edition of a video game cost $60, but its previous version only cost $40.  If 15 games are sold for $840, how many copies of the newest game sold?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508601 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=508601\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Maybe a mixture problem but also a linear system problem.\r<BR>\n" );
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document.write( "n is how many new<BR>\n" );
document.write( "p is how many previous versions\r<BR>\n" );
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document.write( "Account for total versions sold:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%2Bp=15 ALIGN=MIDDLE  ALT=\"n%2Bp=15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Account for sales value:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60n%2B40p=840 ALIGN=MIDDLE  ALT=\"60n%2B40p=840\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is simplifiable to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3n%2B2p=42 ALIGN=MIDDLE  ALT=\"3n%2B2p=42\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "SOLVE THE SYSTEM:<BR>\n" );
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document.write( "n+p=15<BR>\n" );
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document.write( "3n+2p=42<BR>\n" );
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document.write( "Choosing Elimination Method, you can use 2n+2p=30 and 3n+2p=42, and subtract first equation from second equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283n%2B2p%29-%282n%2B2p%29=42-30 ALIGN=MIDDLE  ALT=\"%283n%2B2p%29-%282n%2B2p%29=42-30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3n%2B2p-2n-2p=12 ALIGN=MIDDLE  ALT=\"3n%2B2p-2n-2p=12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%2B0=12 ALIGN=MIDDLE  ALT=\"n%2B0=12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28n=12%29 ALIGN=MIDDLE  ALT=\"highlight%28n=12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and this means <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28p=3%29 ALIGN=MIDDLE  ALT=\"highlight%28p=3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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