document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=940896>Question 940896</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm trying to help my daughter with the following equation:<BR>\n" );
document.write( "e^-x=5   - We came up with the answer being = -1.6 but her teacher said this was incorrect. Can you help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #573495 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=573495\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> e^-x=5<BR>\n" );
document.write( "ln(-x) = ln(5)<BR>\n" );
document.write( "-x = ln(5)<BR>\n" );
document.write( "x = -ln(5)<BR>\n" );
document.write( "x =~ -1.609<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "-1.6 is correct to the nearest 0.1<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );