document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=639160>Question 639160</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve.<BR>\n" );
document.write( "2x - y - 3z = -1<BR>\n" );
document.write( "2x - y + z = -9<BR>\n" );
document.write( "x + 2y - 4z = 17\r<BR>\n" );
document.write( "\n" );
document.write( "I got so far as;<BR>\n" );
document.write( "2x - y - 3z = -1<BR>\n" );
document.write( "4z = -8<BR>\n" );
document.write( "3y - 5z = 35\r<BR>\n" );
document.write( "\n" );
document.write( "Please help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #402594 by </B><A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><B>Tatiana_Stebko(1539)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Tatiana_Stebko><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=Tatiana_Stebko><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=402594\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%282x+-+y+-+3z+=+-1%2C+2x+-+y+%2B+z+=+-9%2Cx+%2B+2y+-+4z+=+17%29 ALIGN=MIDDLE  ALT=\"system%282x+-+y+-+3z+=+-1%2C+2x+-+y+%2B+z+=+-9%2Cx+%2B+2y+-+4z+=+17%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply the third equation by 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%282x+-+y+-+3z+=+-1%2C+2x+-+y+%2B+z+=+-9%2C2x+%2B+4y+-+8z+=+34%29 ALIGN=MIDDLE  ALT=\"system%282x+-+y+-+3z+=+-1%2C+2x+-+y+%2B+z+=+-9%2C2x+%2B+4y+-+8z+=+34%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Subtract the first equation from the second and from the third equations<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%282x+-+y+-+3z+=+-1%2C+4z+=+-8%2C+5y+-+5z+=+35%29 ALIGN=MIDDLE  ALT=\"system%282x+-+y+-+3z+=+-1%2C+4z+=+-8%2C+5y+-+5z+=+35%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "From the second equation<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=-2 ALIGN=MIDDLE  ALT=\"z=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=-2 ALIGN=MIDDLE  ALT=\"z=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > into the third equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y%2B10=35 ALIGN=MIDDLE  ALT=\"5y%2B10=35\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y=25 ALIGN=MIDDLE  ALT=\"5y=25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=5 ALIGN=MIDDLE  ALT=\"y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=-2%2C+y=5 ALIGN=MIDDLE  ALT=\"z=-2%2C+y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > into the first equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x-5%2B6=-1 ALIGN=MIDDLE  ALT=\"2x-5%2B6=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=-2 ALIGN=MIDDLE  ALT=\"2x=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-1 ALIGN=MIDDLE  ALT=\"x=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Answer: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28x=-1%2C+y=5%2C+z=-2%29 ALIGN=MIDDLE  ALT=\"system%28x=-1%2C+y=5%2C+z=-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );