document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=480797>Question 480797</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if n(A)=30 ,n(B)=40 ,and n(AUB)=45,find n(A&#8745;B) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #329214 by </B><A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><B>Tatiana_Stebko(1539)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><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=Tatiana_Stebko><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=329214\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> n(AUB)=n(A)+n(B)-n(A&#8745;B)<BR>\n" );
document.write( "45=30+40-n(A&#8745;B)<BR>\n" );
document.write( "n(A&#8745;B)=70-45<BR>\n" );
document.write( "n(A&#8745;B)=25 </SPAN>\n" );
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