document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=566012>Question 566012</A>: <I><SPAN STYLE=\"word-break: break-all;\"> xy=3<BR>\n" );
document.write( "5x-6y=6<BR>\n" );
document.write( "by substitution method </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366092 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=366092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> xy=3<BR>\n" );
document.write( "y= 3/x\r<BR>\n" );
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document.write( "substitute y in the equation<BR>\n" );
document.write( "5x-6y=6\r<BR>\n" );
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document.write( "5x -6*(3/x)=6\r<BR>\n" );
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document.write( "multiply the equation by x\r<BR>\n" );
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document.write( "5x^2-18=6x\r<BR>\n" );
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document.write( "5x^2-6x-18=0\r<BR>\n" );
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document.write( "Find the roots of the equation by quadratic formula								<BR>\n" );
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document.write( "a=	5	,	b=	-6	,	c=	-18	<BR>\n" );
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document.write( "b^2-4ac=	36	+	360					<BR>\n" );
document.write( "b^2-4ac=	396		<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%09sqrt%28%09396%09%29=%0919.9%09 ALIGN=MIDDLE  ALT=\"%09sqrt%28%09396%09%29=%0919.9%09\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >								<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >								<BR>\n" );
document.write( "x1=(	6	+	19.9	)/	10			<BR>\n" );
document.write( "x1=	2.59							<BR>\n" );
document.write( "x2=(	6		-19.9	) /	10			<BR>\n" );
document.write( "x2= 	-1.39							\r<BR>\n" );
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document.write( "if x = 2.59 y = 3/2.59 = 1.16<BR>\n" );
document.write( "(2.59,1.16)\r<BR>\n" );
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document.write( "If x= -1.39 y= 3/-1.39=-2.16<BR>\n" );
document.write( "(-1.39,-2.16)<BR>\n" );
document.write( " </SPAN>\n" );
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