document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=172830>Question 172830</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve:<BR>\n" );
document.write( "A) x=-2y<BR>\n" );
document.write( "3x-2y=8<BR>\n" );
document.write( "B) 2x-3y=13<BR>\n" );
document.write( "3x+y=3<BR>\n" );
document.write( "C) 2s-t=4<BR>\n" );
document.write( "3s-5t=2<BR>\n" );
document.write( "D) x/3-y/6=-1/3<BR>\n" );
document.write( "x+y=-3-2x-y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #127765 by </B><A HREF=/tutors/aboutme.mpl?userid=midwood_trail><B>midwood_trail(310)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=midwood_trail><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=127765\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I will do (A) only.\r<BR>\n" );
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document.write( "Follow my steps and do the rest.\r<BR>\n" );
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document.write( "QUESTION (A) \r<BR>\n" );
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document.write( "x = -2y.......Equation A<BR>\n" );
document.write( "3x - 2y = 8...Equation B\r<BR>\n" );
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document.write( "Notice how conveniently Equation A already gives us the fact that x = -2y.\r<BR>\n" );
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document.write( "Replace x in Equation B with -2y to find the value of y.\r<BR>\n" );
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document.write( "3(-2y) - 2y = 8\r<BR>\n" );
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document.write( "-6y - 2y = 8\r<BR>\n" );
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document.write( "-8y = 8\r<BR>\n" );
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document.write( "y = 8/-8\r<BR>\n" );
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document.write( "y = -1\r<BR>\n" );
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document.write( "I just found the value of y to be -1.\r<BR>\n" );
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document.write( "To find the value of x, replace y in EITHER EQUATION (your choice) with -1 and simplify.\r<BR>\n" );
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document.write( "I will use Equation A because it is easier to play with.\r<BR>\n" );
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document.write( "x = -2y...Equation A\r<BR>\n" );
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document.write( "x = -2(-1)\r<BR>\n" );
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document.write( "x = 2\r<BR>\n" );
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document.write( "The solution for this system of linear equations is the point (2, -1).\r<BR>\n" );
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document.write( "What does that point really mean anyway?\r<BR>\n" );
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document.write( "The point (2, -1) is the location on the xy-plane where the two given lines meet or cross each other.\r<BR>\n" );
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document.write( "Understand?\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );