document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=937862>Question 937862</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If z and y are negative integers and x - y = 1, what is the least possible value for xy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #571257 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=571257\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x - y = 1<BR>\n" );
document.write( "y <= -1<BR>\n" );
document.write( "z <= -1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "put the system of linear equations into standard form<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - y = 1<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "z = -1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "copy and paste the above standard form linear equations in to this solver:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "solution:<BR>\n" );
document.write( "x = 0<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "z = -1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer:<BR>\n" );
document.write( "xy = 0 * (-1) = 0<BR>\n" );
document.write( "notice that the value of z is irrelevant to this problem<BR>\n" );
document.write( "---<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "y = -2<BR>\n" );
document.write( "x - y = 1<BR>\n" );
document.write( "x = 1 + y<BR>\n" );
document.write( "x = 1 - 2<BR>\n" );
document.write( "x = -1<BR>\n" );
document.write( "xy = (-1)(-2)<BR>\n" );
document.write( "xy = 3<BR>\n" );
document.write( "so the answer above is correct<BR>\n" );
document.write( "---<BR>\n" );
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document.write( "---<BR>\n" );
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document.write( "---<BR>\n" );
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document.write( "---<BR>\n" );
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document.write( "--- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );