document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511519>Question 511519</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in one week, a music store stold 9 guitars fora  total of $3611. electric guitars sold for $479 each and acoustic guitars sold for $339 each. how many of each type of guitar were sold?\r<BR>\n" );
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document.write( "so far i got (3611)(9)=479e+338a<BR>\n" );
document.write( "e=electric<BR>\n" );
document.write( "a=acoustic </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342272 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=342272\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have to keep the counts of the items separate from their values.<BR>\n" );
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document.write( "a = number of acoustic guitars<BR>\n" );
document.write( "339a = value of the acoustic guitars<BR>\n" );
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document.write( "e = number of electric guitars<BR>\n" );
document.write( "479e = value of electric guitars<BR>\n" );
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document.write( "a + e = 9 guitars sold<BR>\n" );
document.write( "so<BR>\n" );
document.write( "a = 9-e<BR>\n" );
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document.write( "339a + 479e = 3611<BR>\n" );
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document.write( "substitute a=9-e<BR>\n" );
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document.write( "339(9-e) + 479e = 3611<BR>\n" );
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document.write( "3051 -339e +479e = 3611<BR>\n" );
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document.write( "140e = 3611-3051<BR>\n" );
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document.write( "140e = 560<BR>\n" );
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document.write( "e = 4<BR>\n" );
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document.write( "a = 9-e<BR>\n" );
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document.write( "a = 9-4<BR>\n" );
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document.write( "a = 5<BR>\n" );
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document.write( "Check the values to be sure this is the right answer.<BR>\n" );
document.write( "339*5 + 479*4 = ??<BR>\n" );
document.write( "339*5 + 479*4 = 3611<BR>\n" );
document.write( "Correct.<BR>\n" );
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document.write( "Answer: They sold 4 electric guitars and 5 acoustic guitars.<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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