document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=417394>Question 417394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi I am studying for a test and can not figure out how to solve 9^(-3x)=7. Could you show me step by step how to solve it? Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #292217 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=292217\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%5E%28-3x%29=7 ALIGN=MIDDLE  ALT=\"9%5E%28-3x%29=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%289%5E%28-3x%29%29+=+log%287%29 ALIGN=MIDDLE  ALT=\"log%289%5E%28-3x%29%29+=+log%287%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-3x*log(9) = log(7)<BR>\n" );
document.write( "-3x = log(7)/log(9)<BR>\n" );
document.write( "x = -log(7)/(3*log(9))<BR>\n" );
document.write( "x =~ -0.2952<BR>\n" );
document.write( " </SPAN>\n" );
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