document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180242>Question 180242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Restriction on variable in a denominator<BR>\n" );
document.write( "If the expression: <BR>\n" );
document.write( "5z+5/6z+7\r<BR>\n" );
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document.write( "is to make sense, the values that  can take must be restricted. State the restriction on   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #135079 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=135079\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "A rational expression is undefined whenever the denominator equals zero.  You need to exclude any value for <i>z</i> that would make the denominator zero.  So, solve the following for <i>z</i>:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \text {          }\math 6z + 7 = 0\">\r<BR>\n" );
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document.write( "And the result will be the value that must be restricted.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
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