document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077751>Question 1077751</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x + y = 16    x-y = 10 solve by substitution.\r<BR>\n" );
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document.write( "The answer sheet says (8,-2) I am coming up with something different. Please help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #692234 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=692234\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> By substitution:<BR>\n" );
document.write( "x + y = 16 subtract y from both sides:<BR>\n" );
document.write( "x = 16-y<BR>\n" );
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document.write( "x-y = 10 here substitute for x:<BR>\n" );
document.write( "16-y-y = 10<BR>\n" );
document.write( "-2y = -6<BR>\n" );
document.write( "y = 3 and since 16-y = x then 16-3 = x = 13<BR>\n" );
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document.write( "by addition:<BR>\n" );
document.write( "x+y = 16<BR>\n" );
document.write( "x-y = 10<BR>\n" );
document.write( "2x = 26<BR>\n" );
document.write( "x = 13 and since x+y = 16, then 16-13 = y = 3<BR>\n" );
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document.write( "As you see, your answer is (13, 3)\r<BR>\n" );
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document.write( " </SPAN>\n" );
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