document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=44351>Question 44351</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve each problem.  Use your choice of methods.\r<BR>\n" );
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document.write( " x + y = -4\r<BR>\n" );
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document.write( "4x + y = -13\r<BR>\n" );
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document.write( "y + 3z = -10  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #29294 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=29294\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x + y = -4<BR>\n" );
document.write( "Means:<BR>\n" );
document.write( "y = -x - 4<BR>\n" );
document.write( "Plug:<BR>\n" );
document.write( "4x + y = -13<BR>\n" );
document.write( "4x - x - 4 = -13<BR>\n" );
document.write( "3x = -9<BR>\n" );
document.write( "x = -3<BR>\n" );
document.write( "Plug:<BR>\n" );
document.write( "x + y = -4<BR>\n" );
document.write( "-3 + y = -4<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "Plug:<BR>\n" );
document.write( "y + 3z = -10<BR>\n" );
document.write( "-1 + 3z = -10<BR>\n" );
document.write( "3z = -9<BR>\n" );
document.write( "z = -3<BR>\n" );
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