document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=420710>Question 420710</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by the elimination method\r<BR>\n" );
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document.write( "7r-8s=-21<BR>\n" );
document.write( "8r+7s=89\r<BR>\n" );
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document.write( "a.the solution is?<BR>\n" );
document.write( "b.there are infinitely many solutions<BR>\n" );
document.write( "c.there is no solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293886 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=293886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7r-8s	=-21	.............1	<BR>\n" );
document.write( "8r+7s=	89	.............2	<BR>\n" );
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document.write( "multiply (1)by 	7			<BR>\n" );
document.write( "Multiply (2) by 	8			<BR>\n" );
document.write( "49	r	+	-56	s	=	-147		<BR>\n" );
document.write( "64	r	+	56	s	=	712		<BR>\n" );
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document.write( "Add the two equations								<BR>\n" );
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document.write( "113	r	=	565		<BR>\n" );
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document.write( "/	113							<BR>\n" );
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document.write( "r	=	5					<BR>\n" );
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document.write( "plug value of 	r	In (1)				<BR>\n" );
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document.write( "7	r	+	-8	s	=	-21		<BR>\n" );
document.write( "35		+	-8	s	=	-21		<BR>\n" );
document.write( "			-8	s	=	-21	+	-35<BR>\n" );
document.write( "			-8	s	=	-56		<BR>\n" );
document.write( "				s	=	7		<BR>\n" );
document.write( " </SPAN>\n" );
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