document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=61569>Question 61569</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am supposed to solve the system 2x-y=6 and -4x+2y=9 by addition.  I am so confused. Please help me.  Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #42380 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=42380\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the system <BR>\n" );
document.write( "1st: 2x-y=6 and <BR>\n" );
document.write( "2nd: -4x+2y=9 by addition<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Multiply 1st be 2 to get:<BR>\n" );
document.write( "3rd: 4x-2y=12<BR>\n" );
document.write( "Add 2nd and 3rd to get:<BR>\n" );
document.write( "0=21<BR>\n" );
document.write( "This is a contradiction; it means the system<BR>\n" );
document.write( "is inconsistent.  It means the lines are parallel<BR>\n" );
document.write( "and do not share any points.<BR>\n" );
document.write( "Your answer should be \"No solution\".<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );