document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=434980>Question 434980</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the unknown of 2^x-1=1/128 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #301155 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=301155\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the unknown of 2^x-1=1/128<BR>\n" );
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document.write( "2^(x-1) = 2^-7<BR>\n" );
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document.write( "x-1 = -7<BR>\n" );
document.write( "x = -6<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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