document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1047631>Question 1047631</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I do not understand this:\r<BR>\n" );
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document.write( "Solve the following system of equations:<BR>\n" );
document.write( "2x+3y-x=0<BR>\n" );
document.write( "X-2y-4z=14<BR>\n" );
document.write( "3x+y-8z=17\r<BR>\n" );
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document.write( "This is all one problem.I'm having trouble and need some guidance if you could please to make this a little more simple for me to understand. Thank you so much for you time and help.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #663160 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=663160\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the following system of equations:<BR>\n" );
document.write( "2x+3y-x=0<BR>\n" );
document.write( "X-2y-4z=14<BR>\n" );
document.write( "3x+y-8z=17 <BR>\n" );
document.write( "Interchange row 1 and row 2 to get:<BR>\n" );
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document.write( "X-2y-4z=14<BR>\n" );
document.write( "2x+3y-x=0<BR>\n" );
document.write( "3x+y-8z=17 <BR>\n" );
document.write( "Subtract 2*row 1 from row 2<BR>\n" );
document.write( "Subtract 3*row 1 from row 3<BR>\n" );
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document.write( "x - 2y - 4z = 14<BR>\n" );
document.write( "0 + 7y +7z = -28<BR>\n" );
document.write( "0 + 7y -5z =  17<BR>\n" );
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document.write( "Subtract row 2 from row 3 to get:<BR>\n" );
document.write( "x - 2y - 4z = 14<BR>\n" );
document.write( "0 + 7y + 7z = -28<BR>\n" );
document.write( "0 + 0  -12z =  45<BR>\n" );
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document.write( "Solve row 3 for \"z\"<BR>\n" );
document.write( "z = -15/4<BR>\n" );
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document.write( "Divide thru row 2 by 7 to get::<BR>\n" );
document.write( "x - 2y - 4z = 14<BR>\n" );
document.write( "0 + y  +  z = -4<BR>\n" );
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document.write( "Substitute for \"z\" and solve for \"y\"::<BR>\n" );
document.write( "x - 2y - 4z = 14<BR>\n" );
document.write( "y = -4+15/4<BR>\n" );
document.write( "y = -1/4<BR>\n" );
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document.write( "Substitute for y and z in row 1 and solve for \"x\":<BR>\n" );
document.write( "x - 2(-1/4) - 4(-15/4) = 14<BR>\n" );
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document.write( "x + (1/2) + 15 = 14<BR>\n" );
document.write( "x = -3/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "--------------- </SPAN>\n" );
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