document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1025532>Question 1025532</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me and show steps. I never been good doing these.\r<BR>\n" );
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document.write( "Given the system of equations <BR>\n" );
document.write( "2x-3y-9z=-5<BR>\n" );
document.write( "x+3z=5<BR>\n" );
document.write( "-3x+y-4z=-10\r<BR>\n" );
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document.write( " (a) determine whether the system is inconsistent or dependent; <BR>\n" );
document.write( " Your answer is (input inconsistent or dependent)  <BR>\n" );
document.write( " (b) if your answer is dependent in (a), find the complete solution. Write x<BR>\n" );
document.write( " and y as functions of z.<BR>\n" );
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document.write( "x=\r<BR>\n" );
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document.write( "y=<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #640894 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=640894\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x-3y-9z=-5<BR>\n" );
document.write( " x+3z=5<BR>\n" );
document.write( " -3x+y-4z=-10 <BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The 2nd eqn has no y term, so eliminate y using the 1st and 3rd eqns.<BR>\n" );
document.write( "2x-3y-9z=-5<BR>\n" );
document.write( "-3x+y-4z=-10 times 3 --> -9x+3y-12z = -30<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "2x -3y-9z=-5<BR>\n" );
document.write( "-9x+3y-12z = -30<BR>\n" );
document.write( "------------------- Add<BR>\n" );
document.write( "-7x - 21z = -35<BR>\n" );
document.write( "Divide by -7<BR>\n" );
document.write( "x + 3z = 5<BR>\n" );
document.write( "That's the same as eqn 2 --> dependent, no unique solution<BR>\n" );
document.write( "----<BR>\n" );
document.write( " (b) if your answer is dependent in (a), find the complete solution. Write x<BR>\n" );
document.write( " and y as functions of z.<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = 5 - 3z<BR>\n" );
document.write( "y = 5 - 5z </SPAN>\n" );
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