document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=274586>Question 274586</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve\r<BR>\n" );
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document.write( "z/9-9/z=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200376 by </B><A HREF=/tutors/aboutme.mpl?userid=dabanfield><B>dabanfield(803)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dabanfield><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=200376\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z/9 - 9/z = 0\r<BR>\n" );
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document.write( "First multiply both sides of the equation above by z:\r<BR>\n" );
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document.write( "z^2/9 - 9 = 0\r<BR>\n" );
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document.write( "Next multiply both sides of this equation by 9:\r<BR>\n" );
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document.write( "z^2 - 81 = 0\r<BR>\n" );
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document.write( "Now solve for x:\r<BR>\n" );
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document.write( "z^2 - 81 = 0<BR>\n" );
document.write( "(z+9)*(z-9) = 0\r<BR>\n" );
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document.write( "So either z+9 = 0 or z-9 = 0. Solving we have:\r<BR>\n" );
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document.write( "z = 9 or z = -9\r<BR>\n" );
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document.write( " </SPAN>\n" );
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