document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=93319>Question 93319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me with this problem? Solve for x. x+2y= -1<BR>\n" );
document.write( "                                                3x-4y= 27<BR>\n" );
document.write( "I think I am supposed to solve for y in one problem, then substitute it in the next one... but I'm not sure. Thanks in advance!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67932 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=67932\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for x. <BR>\n" );
document.write( "1st: x+2y= -1<BR>\n" );
document.write( "2nd: 3x-4y= 27<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Solve 1st for x:<BR>\n" );
document.write( "x = -2y-1<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "Substitute that into 2nd and solve for y:<BR>\n" );
document.write( "3(-2y-1) - 4y = 27<BR>\n" );
document.write( "-6y-3 -4y = 27<BR>\n" );
document.write( "-10y = 30<BR>\n" );
document.write( "y = -3<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "Substitute that into x = -2y-1 and solve for x:<BR>\n" );
document.write( "x = -2*-3-1<BR>\n" );
document.write( "x = 5<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "System solution:<BR>\n" );
document.write( "x=5; y=-3<BR>\n" );
document.write( "================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );