document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=849774>Question 849774</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A two-digit number is four times the sum of its digits. The tens digit is 3 less than the units digit. What is the number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #511758 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=511758\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A two-digit number is four times the sum of its digits. The tens digit is 3 less than the units digit. What is the number?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let u=units digit<BR>\n" );
document.write( "let t=tens digit<BR>\n" );
document.write( "number: 10t+u<BR>\n" );
document.write( "..<BR>\n" );
document.write( "t=u-3<BR>\n" );
document.write( "10t+u=4(u+t)<BR>\n" );
document.write( "sub(u-3) for t<BR>\n" );
document.write( "10(u-3)+u=4u+4(u-3)<BR>\n" );
document.write( "10u-30+u=4u+4u-12<BR>\n" );
document.write( "3u=18<BR>\n" );
document.write( "u=6<BR>\n" );
document.write( "t=u-3=3<BR>\n" );
document.write( "number: 10t+u=36 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );