document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=551139>Question 551139</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The tens digit of a certain two digit number is two more than the units digit. The original number is 18 more than the number formed by interchanging the digits. What is the original number? Please help me solve this!!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #359453 by </B><A HREF=/tutors/aboutme.mpl?userid=mathstutor458><B>mathstutor458(57)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathstutor458><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=359453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the number = xy<BR>\n" );
document.write( "The tens digit of a certain two digit number is two more than the units digit.<BR>\n" );
document.write( "so,x=y+2<BR>\n" );
document.write( " The original number is 18 more than the number formed by interchanging the digits. <BR>\n" );
document.write( "xy=yx+18<BR>\n" );
document.write( "from this we can understand that x,y values must be even numbers and x value is greater than y value.<BR>\n" );
document.write( "take y=2,so x=2+2=4 (because no odd numbers)<BR>\n" );
document.write( "xy=42<BR>\n" );
document.write( "check xy=yx+18<BR>\n" );
document.write( "=>42=24+18<BR>\n" );
document.write( "=>42=42 satisfies the equations<BR>\n" );
document.write( "so the original number is 42. </SPAN>\n" );
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