document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=244391>Question 244391</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ok, here is the next problem that I am facing.  I can figure the first part, but cannot make sense of the second part. \r<BR>\n" );
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document.write( "5x+3y=-11<BR>\n" );
document.write( "7x-2y=-17\r<BR>\n" );
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document.write( "2(5x+3y=-11) =<BR>\n" );
document.write( "10x+6y=-33\r<BR>\n" );
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document.write( "3(7x-2y=17)=<BR>\n" );
document.write( "21x-6y=51\r<BR>\n" );
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document.write( "10x+6y=-33<BR>\n" );
document.write( "21x+6y=51<BR>\n" );
document.write( "31x=18\r<BR>\n" );
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document.write( "x=18<BR>\n" );
document.write( "    31<BR>\n" );
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document.write( "Correct so far right? \r<BR>\n" );
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document.write( "Here is what I can not figure out: I would then take X and substitute into either one of the equations. \r<BR>\n" );
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document.write( "I chose the second one. \r<BR>\n" );
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document.write( "7(18/31)-2y=17 \r<BR>\n" );
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document.write( "No logically, I would need to eliminate the y out of the equation somehow, but how? \r<BR>\n" );
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document.write( "7(18/31)-2y+2y=17, but then I would have to add it back on behind the 17 right? \r<BR>\n" );
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document.write( "Here is what the example from Mathlab shows:\r<BR>\n" );
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document.write( "So the only answer that I can derive from this is by multiplying 7(18/31) which equals 126/31, now what???  What do I do with the rest of the equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #178768 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=178768\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5x+3y=-11<BR>\n" );
document.write( "7x-2y=-17<BR>\n" );
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document.write( "10x+6y=-22 not -33<BR>\n" );
document.write( "21x-6y=-51 not 51<BR>\n" );
document.write( "-----------------add<BR>\n" );
document.write( "31x=-73<BR>\n" );
document.write( "x=-73/31<BR>\n" );
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document.write( "5(-73/31)+3y=-11 replace x with -73/31<BR>\n" );
document.write( "-365/31 +3y=-11<BR>\n" );
document.write( "3y=24/31<BR>\n" );
document.write( "y=8/31<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
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