document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=714153>Question 714153</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use elimination to solve the linear system.<BR>\n" );
document.write( " 3x-4y=21<BR>\n" );
document.write( "4x+2y=6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #438703 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=438703\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x-4y=21 divide by 2 & add.<BR>\n" );
document.write( "4x+2y=6<BR>\n" );
document.write( "1.5x-2y=10.5<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "5.5x=16.5<BR>\n" );
document.write( "x=16.5/5.5<BR>\n" );
document.write( "x=3 ans<BR>\n" );
document.write( "3*3-4y=21<BR>\n" );
document.write( "9-4y=21<BR>\n" );
document.write( "-4y=21-9<BR>\n" );
document.write( "-4y=12<BR>\n" );
document.write( "y=12/-4<BR>\n" );
document.write( "y=-3 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "4*3+2*-3=6<BR>\n" );
document.write( "12-6=6<BR>\n" );
document.write( "6=6<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );