document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90772>Question 90772</A>: <I><SPAN STYLE=\"word-break: break-all;\"> SOLVE THE SYSTEM BY ADDING OR SUBTITUTION<BR>\n" );
document.write( "3X+6y=0<BR>\n" );
document.write( "x=2/3\r<BR>\n" );
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document.write( "solve the sysem by adding<BR>\n" );
document.write( "5x-4y+-12<BR>\n" );
document.write( "x+5y=15 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66011 by </B><A HREF=/tutors/aboutme.mpl?userid=malakumar_kos@yahoo.com><B>malakumar_kos@yahoo.com(315)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=malakumar_kos@yahoo.com><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=66011\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "     SOLVE THE SYSTEM BY ADDING OR SUBTITUTION<BR>\n" );
document.write( "3X+6y=0<BR>\n" );
document.write( "x=2/3 <BR>\n" );
document.write( "solve the sysem by adding<BR>\n" );
document.write( "5x-4y+-12<BR>\n" );
document.write( "x+5y=15\r<BR>\n" );
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document.write( "    1) x = 2/3.......(1)\r<BR>\n" );
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document.write( "       3x+6y = 0.....(2)\r<BR>\n" );
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document.write( "       substitute for x in (2)\r<BR>\n" );
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document.write( "                3*2/3+6y = 0\r<BR>\n" );
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document.write( "                     6y = -2   or y = -1/3\r<BR>\n" );
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document.write( "             The solution is (2/3, -1/3)\r<BR>\n" );
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document.write( "     2)5x-4y = 12.......(1)\r<BR>\n" );
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document.write( "        x+5y = 15.......(2)\r<BR>\n" );
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document.write( "        multiply (2) by -5  and add to (1)\r<BR>\n" );
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document.write( "            -5x-25y = -75\r<BR>\n" );
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document.write( "             5x-4y =   12\r<BR>\n" );
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document.write( "                -29y = -63<BR>\n" );
document.write( "                  y = 63/29\r<BR>\n" );
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document.write( "      To find x substitute for y in (2)\r<BR>\n" );
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document.write( "         x = 15-5y = 15-5(63/29) =( 435-315)/29 = 120/29\r<BR>\n" );
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document.write( "      The solution is (120/29,63/29) </SPAN>\n" );
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