document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=579050>Question 579050</A>: <I><SPAN STYLE=\"word-break: break-all;\"> LINEAR SYSTEMS ALGEBRA; 7X-3Y=-23, X+5Y=32;  AM TRYING TO HELP MY GRANDSON AND HAVE NO IDEA WHERE TO START.\r<BR>\n" );
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document.write( "THINK I HAVE DONE ONE CORRECTLY X-Y=3, 2X-2Y=6 (I BELIEVE X = 4 AND Y = 1 BUT DO NOT HAVE ANY IDEA HOW TO SHOW THE WORK;\r<BR>\n" );
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document.write( "PLEASE AND 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 #370836 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=370836\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the one you have done \"correctly\" works for any values of x and y, as long as x is 3 greater than y<BR>\n" );
document.write( "___ there is no unique solution<BR>\n" );
document.write( "___ this is the case when you can multiply one equation by a constant and get the other equation\r<BR>\n" );
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document.write( "x + 5y = 32 ___ x = 32 - 5y ___ substitute this equivalent value for x into the other equation\r<BR>\n" );
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document.write( "7(32 - 5y) - 3y = -23 ___ 224 - 35y - 3y = -23 ___ 247 = 38y ___ 247 / 38 = y ___ 13 / 2 = y\r<BR>\n" );
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document.write( "x + 5(13 / 2) = 32 ___ x + (65 / 2) = 64 / 2 ___ x = -1 / 2 </SPAN>\n" );
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