document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=69644>Question 69644</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0078457718/algebrahomeworkh>Algebra Concepts and Applications</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How can you do this?\r<BR>\n" );
document.write( "\n" );
document.write( "-k = 5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #49586 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=49586\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> CONSIDER THE = SIGN AS A BALANCE BEAM THAT IS PERFECTLY BALANCED. THEREFORE WHATEVER YOU DO TO ONE SIDE YOU MUST DO THE SAME TO THE OTHER SIDE(ADD, SUBTRACT, MULTIPLY, DIVIDE, SQUARE ROOT, SQUARE ETC.).<BR>\n" );
document.write( "-K=5 NOW MULTIPLY BOTH SIDES BY -1<BR>\n" );
document.write( "(-1)(-K)=(-1)5<BR>\n" );
document.write( "K=-5<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "-(-5)=5<BR>\n" );
document.write( "5=5   </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );