document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=240578>Question 240578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> excluding values\r<BR>\n" );
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document.write( "3x<BR>\n" );
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document.write( "7x+21\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #176290 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=176290\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Excluding values means to find the values of x that are NOT allowed.  What is NOT allowed in mathematics is DIVISION BY ZERO.  You will NEVER be allowed to have a denominator equal to zero.\r<BR>\n" );
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document.write( "Therefore, you must EXCLUDE the value that makes 7x+21=0<BR>\n" );
document.write( "7x=-21<BR>\n" );
document.write( "x=-3\r<BR>\n" );
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document.write( "This is the EXCLUDED VALUE of X.\r<BR>\n" );
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document.write( "Dr. Robert J. Rapalje, Retired<BR>\n" );
document.write( "Seminole State College of Florida<BR>\n" );
document.write( "Altamonte Springs Campus  </SPAN>\n" );
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