document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205221>Question 1205221</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a ≡ -25 (mod 7) then a is equal to </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #841911 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=841911\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "As the problem is presented, there is no way to know what a is equal to.  By the definition of mod, a can be any number that differs from -25 by an integer multiple of 7.<br><BR>\n" );
document.write( "The usual intent of a problem like this is to have the answer equal to a non-negative number less than 7.<br><BR>\n" );
document.write( "So a typical correct presentation of the problem, allowing a single answer, would be something like this:<br><BR>\n" );
document.write( "\"Solve: a ≡ -25 (mod 7) (0 <= a < 7)\"<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );