document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=143113>Question 143113</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system of equations by graphing. Then classify the system as consistant or inconsistant, dependent or indepenent?<BR>\n" );
document.write( "9x-9y=63<BR>\n" );
document.write( "9y-9x=-63\r<BR>\n" );
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document.write( "Help me please with this one. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #104189 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTutorer><B>MathTutorer(13)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTutorer><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=104189\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a easy version of a simultaneous equation.\r<BR>\n" );
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document.write( "There are two ways to solve this kind of equation.\r<BR>\n" );
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document.write( "Substitution and Elimination\r<BR>\n" );
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document.write( "We will use substitution here.\r<BR>\n" );
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document.write( "9x-9y=63<BR>\n" );
document.write( "9y-9x=-63\r<BR>\n" );
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document.write( "/ top equation by 9\r<BR>\n" );
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document.write( "x-y=7\r<BR>\n" );
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document.write( "x=y+7\r<BR>\n" );
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document.write( "then substitute into bottom equation.\r<BR>\n" );
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document.write( "9y-9(y+7)=-63\r<BR>\n" );
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document.write( "9y-9y-63=-63\r<BR>\n" );
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document.write( "0y=0\r<BR>\n" );
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document.write( "y is undefined.\r<BR>\n" );
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document.write( "x=7\r<BR>\n" );
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document.write( "hope this helps.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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