document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036895>Question 1036895</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am a number between 70 and 80. The second digit is 3 smaller then the first digit. I know it's 74 because 7-4=3, but how can i solve it mathematically? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #651582 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=651582\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 70<=10y+x<=79<BR>\n" );
document.write( "y-x=3<BR>\n" );
document.write( "====<BR>\n" );
document.write( "70<70x-210+x<=79<BR>\n" );
document.write( "280<=71x<=289<BR>\n" );
document.write( "x is an integer<BR>\n" );
document.write( "x=4; y=7<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );