document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=972043>Question 972043</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Let n(C) represent the number of elements in the set C. If n(A intersect B) is 17 and n(A union B)-n(B) is 17, what is n(A)? \r<BR>\n" );
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document.write( "I was trying to do n(A union B) -n(B) = n(A) -17<BR>\n" );
document.write( "                               17 = n(A) - 17<BR>\n" );
document.write( "                               34 = n(A)<BR>\n" );
document.write( "Is that right? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594453 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=594453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> n(A union B) = n(A) + n(B) - n(A intersect B)<BR>\n" );
document.write( "n(A union B) - n(B) = n(A) - n(A intersect B)<BR>\n" );
document.write( "17 = n(A) - 17<BR>\n" );
document.write( "17 + 17 = n(A)<BR>\n" );
document.write( "34 = n(A)<BR>\n" );
document.write( "n(A) = 34\r<BR>\n" );
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document.write( "So you are correct. </SPAN>\n" );
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