document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201380>Question 201380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A stamp collector has some 15 cent stamps and some 20 cent stamps. The number of 15 cent stamps is eight less than three time the number of 20 cent stamps. The total value is $4. Find the number of each type of stamp in the collection.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #151631 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=151631\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=number of 20 cent stamps<BR>\n" );
document.write( "Then 3x-8=number of 15 cent stamps\r<BR>\n" );
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document.write( "we'll deal in pennies<BR>\n" );
document.write( "20x+15(3x-8)=400  get rid of parens<BR>\n" );
document.write( "20x+45x-120=400 add 120 to each side<BR>\n" );
document.write( "20x+45x-120+120=400+120  collect like terms<BR>\n" );
document.write( "65x=520  divide each side by 65<BR>\n" );
document.write( "x=8--------------------number of 20 cent stamps<BR>\n" );
document.write( "3x-8=3*8-8=24-8=16  number of 15 cent stamps\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "8*20+16*15=400<BR>\n" );
document.write( "160+240=400<BR>\n" );
document.write( "400=400\r<BR>\n" );
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document.write( "Hope this helps---ptaylor </SPAN>\n" );
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