document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=529767>Question 529767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Elimination<BR>\n" );
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document.write( "5x+y=9<BR>\n" );
document.write( "10x-7y=-18<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #349736 by </B><A HREF=/tutors/aboutme.mpl?userid=swincher4391><B>swincher4391(1107)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=swincher4391><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=swincher4391><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=349736\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Notice 10 = 5*2.\r<BR>\n" );
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document.write( "5x + y = 9<BR>\n" );
document.write( "10x - 7y = -18\r<BR>\n" );
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document.write( "If we multiply the top by -2, then we can add and eliminate x.\r<BR>\n" );
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document.write( "-2(5x+y) = -2*9\r<BR>\n" );
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document.write( "-10x - 2y = -18<BR>\n" );
document.write( "10x - 7y = -18\r<BR>\n" );
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document.write( "-9y = -36\r<BR>\n" );
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document.write( "y = 4\r<BR>\n" );
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document.write( "5x + 4 = 9<BR>\n" );
document.write( "5x = 5<BR>\n" );
document.write( "x = 1\r<BR>\n" );
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document.write( "So our solution is (1,4) </SPAN>\n" );
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