document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=270432>Question 270432</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you solve:\r<BR>\n" );
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document.write( "9x = 10y<BR>\n" );
document.write( "3x-2y = 12\r<BR>\n" );
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document.write( "Use the elimination method to solve the system\r<BR>\n" );
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document.write( "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 #198132 by </B><A HREF=/tutors/aboutme.mpl?userid=Greenfinch><B>Greenfinch(383)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Greenfinch><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/cgi-bin/show-face.mpl?user=Greenfinch><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=198132\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To use the elimination method we need to eliminate either x or y.<BR>\n" );
document.write( "If I eliminate x by multiplying the second equation by 3<BR>\n" );
document.write( "We get  9x - 10y = 0<BR>\n" );
document.write( "and 9x - 6y = 36\r<BR>\n" );
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document.write( "subtracting gives -4y = -36<BR>\n" );
document.write( "y = 9 and then substituting in the first equation gives 9x = 90 or x = 10<BR>\n" );
document.write( "Checking in the second gives 3 x 10 - 2 x 9 = 30 = 18 = 12 which checks out </SPAN>\n" );
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