document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167542>Question 167542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by elimination method:<BR>\n" );
document.write( "5x+5y= -13<BR>\n" );
document.write( "7x-3y= 17 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123440 by </B><A HREF=/tutors/aboutme.mpl?userid=sowmya><B>sowmya(32)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sowmya><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=123440\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve by elimination method:<BR>\n" );
document.write( "5x+5y= -13<BR>\n" );
document.write( "7x-3y= 17\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "eq 1:<BR>\n" );
document.write( "x+y = -13/5\r<BR>\n" );
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document.write( "7x = 17+3y<BR>\n" );
document.write( " x = 17/7 + 3/7 y<BR>\n" );
document.write( "   = 17/7 + 3/7  * (-x-13/7)<BR>\n" );
document.write( "    =17/7 -3x/7 -39/49<BR>\n" );
document.write( "10x/7 = 119-39/49<BR>\n" );
document.write( "           = 80/49<BR>\n" );
document.write( "x = 8/7<BR>\n" );
document.write( "y = -131/35 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );