document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=647589>Question 647589</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 9=7z-13z-21 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #418143 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=418143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9 = 7z - 13z - 21<BR>\n" );
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document.write( "Combine like terms<BR>\n" );
document.write( "9 = -5z - 21<BR>\n" );
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document.write( "Isolate z on one side<BR>\n" );
document.write( "-5z = -21 - 9<BR>\n" );
document.write( "-5z = -30<BR>\n" );
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document.write( "Divide both sides by -5<BR>\n" );
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