document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=73805>Question 73805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 9x-3y=24<BR>\n" );
document.write( "7x-3y=20<BR>\n" );
document.write( "using the elimination method<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #52784 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=52784\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9x-3y=24<BR>\n" );
document.write( "7x-3y=20<BR>\n" );
document.write( "using the elimination method<BR>\n" );
document.write( "Multiply the second equation by -1 and add it to the first equation and the y's will be eliminated so that you can solve for x:<BR>\n" );
document.write( "-1(7x-3y)=-1(20)<BR>\n" );
document.write( "-7x+3y=-20<BR>\n" );
document.write( ":<BR>\n" );
document.write( "9x-3y=24<BR>\n" );
document.write( "-7x+3y=-20<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "2x+0=4<BR>\n" );
document.write( "2x=4<BR>\n" );
document.write( "2x/2=4/2<BR>\n" );
document.write( "x=2<BR>\n" );
document.write( "Substitute x=2 into either equation and solve for y:<BR>\n" );
document.write( "9(2)-3y=24<BR>\n" );
document.write( "18-3y=24<BR>\n" );
document.write( "18-18-3y=24-18<BR>\n" );
document.write( "-3y=6<BR>\n" );
document.write( "-3y/-3=6/-3<BR>\n" );
document.write( "y=-2<BR>\n" );
document.write( "The solution (x,y)=(2,-2)<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );