document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188860>Question 188860</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0471163627/algebrahomeworkh>Contemporary Linear Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem: <BR>\n" );
document.write( "Solve using any method: w + 3x + z = 0<BR>\n" );
document.write( "                        w + 4x + 2y = 0<BR>\n" );
document.write( "                          - 2x - 2y - z = 0<BR>\n" );
document.write( "                        2w - 4x + y + z = 0<BR>\n" );
document.write( "                         w - 2x - y + z = 0 </SPAN>\n" );
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document.write( "Solve using any method: w + 3x + z = 0<BR>\n" );
document.write( "w + 4x + 2y = 0<BR>\n" );
document.write( "- 2x - 2y - z = 0<BR>\n" );
document.write( "2w - 4x + y + z = 0<BR>\n" );
document.write( "w - 2x - y + z = 0<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Just by inspection:<BR>\n" );
document.write( "w = x = y = z = 0<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );