document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=43162>Question 43162</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone help me to work this backwards?\r<BR>\n" );
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document.write( "Karen spent all but $8.00 of her savings in three stores.  In each store she spent $2.00 less than half of what she had when she went in.  How much money did Karen have at the start?\r<BR>\n" );
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document.write( "Someone answered this for me, but I couldn't get it to come up.  Sorry, but I think my computer is fixed now.<BR>\n" );
document.write( "Thanks, </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #28179 by </B><A HREF=/tutors/aboutme.mpl?userid=aaaaaaaa><B>aaaaaaaa(138)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=aaaaaaaa><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=28179\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solving by backtracking is just doing the inverse operations at the inverse order. If we normally divide and add, to backtrack we will subtract and multiply. Algebraically meaning:<BR>\n" );
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document.write( "For end = 8, subtract 2 and multiply by 2:<BR>\n" );
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document.write( "For end = 12<BR>\n" );
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document.write( "For end = 20<BR>\n" );
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document.write( "  </SPAN>\n" );
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