document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=946209>Question 946209</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help. There are 12 elements in the intersection of sets A and B, and there are 20 elements in the union of sets A and B. If set A has 4 fewer elements than set B, find the number of elements that are in set B, but not set A. Thanks for your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #577896 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=577896\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> They share 12 in common.<BR>\n" );
document.write( "With all of them together they have 20.<BR>\n" );
document.write( "4 of the additional items comes from A not in B.<BR>\n" );
document.write( "So the remaining items must come from B not in A.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2B4%2BX=20 ALIGN=MIDDLE  ALT=\"12%2B4%2BX=20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X=4 ALIGN=MIDDLE  ALT=\"X=4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So there are 4 items in B not in A.<BR>\n" );
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