document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=256063>Question 256063</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On Friday, the With-It Clothiers sold some jeans at $25 a pair and some shirts at $18 each. receipts for the day totaled $441. On Saturday the store priced both items at $20, sold exactly the same number of each item, and had receipts of $420. How many pairs of jeans and how many shirts were sold each day?\r<BR>\n" );
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document.write( "if some tutor cold help me applying a algebra formula or some this would be very helpful though i can solve the problem i would really want to know how to solve it by algebra means THANKS! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #188228 by </B><A HREF=/tutors/aboutme.mpl?userid=CharlesG2><B>CharlesG2(834)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CharlesG2><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=188228\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> On Friday, the With-It Clothiers sol some jeans at $25 a pair and some shirts at $18 each. receipts for the day totaled $441. On saturday the store priced both items at $20, sol exactly the same number of each item, and ha receipts of $420. how many pairs of jeans an how many shirts were sold each day? \r<BR>\n" );
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document.write( "J=number of jeans , S=number of shirts\r<BR>\n" );
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document.write( "25*J+18*S=441<BR>\n" );
document.write( "20*J+20*S=420\r<BR>\n" );
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document.write( "solve second equation for either J or S and use subsitution, am gonna choose J\r<BR>\n" );
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document.write( "20*J=420-20*S<BR>\n" );
document.write( "J=21-S  (plug this into 1st equation and solve for S)\r<BR>\n" );
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document.write( "25(21-S)+18*S=441<BR>\n" );
document.write( "25*21 - 25*S +18*S = 441<BR>\n" );
document.write( "25*21 -7*S = 441 (25*21=525)<BR>\n" );
document.write( "-7*S = 441 - 525<BR>\n" );
document.write( "-7*S = -84<BR>\n" );
document.write( "   S = 12 shirts  (plug this into 2nd equation and solve for J)\r<BR>\n" );
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document.write( "20*J+20*12=420 (divide by 20)<BR>\n" );
document.write( "J+12=21<BR>\n" );
document.write( "J=9 pairs of jeans\r<BR>\n" );
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document.write( " </SPAN>\n" );
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