document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=568737>Question 568737</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4x + 7y = 8.77<BR>\n" );
document.write( "8x + 14y = 15.8\r<BR>\n" );
document.write( "\n" );
document.write( "I ued substitution and got x=1.2175 and y=39 over 70. Obviously I did something wrong. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #367107 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=367107\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4	x	+	7	y	=	8.77	.............1	<BR>\n" );
document.write( "8	x	+	14	y	=	15.8	.............2	<BR>\n" );
document.write( "Eliminate y								<BR>\n" );
document.write( "multiply (1)by 		-2						<BR>\n" );
document.write( "Multiply (2) by		1						<BR>\n" );
document.write( "-8	x		-14	y	=	-17.54		<BR>\n" );
document.write( "8	x		14	y	=	15.8		<BR>\n" );
document.write( "Add the two equations								<BR>\n" );
document.write( "0	x				=	-1.74	\r<BR>\n" );
document.write( "\n" );
document.write( "which is absurd\r<BR>\n" );
document.write( "\n" );
document.write( "Hence there is no solution to the system.<BR>\n" );
document.write( "The lines are parallel	<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );