document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=144927>Question 144927</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the substitution to solve the following system\r<BR>\n" );
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document.write( "x+7y=2<BR>\n" );
document.write( "6y+2x=-20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #105613 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=105613\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+7y=2<BR>\n" );
document.write( "X=2-7Y<BR>\n" );
document.write( "6y+2x=-20<BR>\n" );
document.write( "6Y+2(2-7Y)=-20<BR>\n" );
document.write( "6Y+4-14Y=-20<BR>\n" );
document.write( "-8Y=-24<BR>\n" );
document.write( "Y=-24/-8<BR>\n" );
document.write( "Y=3 ANSWER.<BR>\n" );
document.write( "X=2-7*3<BR>\n" );
document.write( "X=2-21<BR>\n" );
document.write( "X=-19 ANSWER.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "6*3+2*-19=-20<BR>\n" );
document.write( "18-38=-20<BR>\n" );
document.write( "-20=-20 </SPAN>\n" );
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