document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791320>Question 791320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B6y=2 ALIGN=MIDDLE  ALT=\"x%2B6y=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "I have been trying to use substitution to solve the system. I do as I was taught and on the first equation subtract 6y from both sides to find my X equation. Every time I plug in x=2-6y I keep getting y=0 which is not correct because I have checked. I also get x=2. No matter how many times I work it the answer is still the same. I would like to know how you get the correct answer, which is in the back of my math book, (8, -1) Thank you.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #479530 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=479530\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the first equation for x to get\r<BR>\n" );
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document.write( "x+6y=2\r<BR>\n" );
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document.write( "x=2-6y\r<BR>\n" );
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document.write( "then plug this into the second equation\r<BR>\n" );
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document.write( "5x+4y=36\r<BR>\n" );
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document.write( "5(2 - 6y)+4y=36\r<BR>\n" );
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document.write( "10 - 30y+4y=36\r<BR>\n" );
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document.write( "10-28y=36\r<BR>\n" );
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document.write( "-26y=36-10\r<BR>\n" );
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document.write( "-26y=26\r<BR>\n" );
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document.write( "y = 26/(-26)\r<BR>\n" );
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document.write( "y = -1\r<BR>\n" );
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document.write( "And then use this to find x\r<BR>\n" );
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document.write( "x=2-6y\r<BR>\n" );
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document.write( "x=2-6(-1)\r<BR>\n" );
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document.write( "x=2+6\r<BR>\n" );
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document.write( "x = 8\r<BR>\n" );
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document.write( "So that shows you why the answer is (8,-1) </SPAN>\n" );
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