document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155800>Question 155800</A>: <I><SPAN STYLE=\"word-break: break-all;\"> We need help with a problem in an 8th grade Pre-Algebra book.  The directions are to simplify the following:  -||-4| + |-21||<BR>\n" );
document.write( "What do the double brackets mean?  Thanks for your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #114748 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=114748\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> simplify the following:  -||-4| + |-21||\r<BR>\n" );
document.write( "\n" );
document.write( "This is what it looks like to me:<BR>\n" );
document.write( "-[|-4| + |-21|]<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "If that is true you have \"absolute value\" terms;<BR>\n" );
document.write( "you do not have double brackets.<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "= -[4 + 21]\r<BR>\n" );
document.write( "\n" );
document.write( "= - 25<BR>\n" );
document.write( "=========<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );