document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186851>Question 186851</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the sum of the digits of a two-digit number is 9. if 45 is subtracted from the number, the digits of the number are reversed. find 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 #140063 by </B><A HREF=/tutors/aboutme.mpl?userid=user_dude2008><B>user_dude2008(1862)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=user_dude2008><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=140063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"the sum of the digits of a two-digit number is 9\" ----> t+u=9 ----> t=9-u\r<BR>\n" );
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document.write( "\" 45 is subtracted from the number, the digits of the number are reversed\" 10t+u-45=10u+t\r<BR>\n" );
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document.write( "10t+u-45=10u+t\r<BR>\n" );
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document.write( "10(9-u)+u-45=10u+9-u\r<BR>\n" );
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document.write( "90-10u+u-45=10u+9-u\r<BR>\n" );
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document.write( "45-9u=9u+9\r<BR>\n" );
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document.write( "45-9=9u+9u\r<BR>\n" );
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document.write( "36=18u\r<BR>\n" );
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document.write( "u=2\r<BR>\n" );
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document.write( "t=9-u\r<BR>\n" );
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document.write( "t=9-2\r<BR>\n" );
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document.write( "t=7\r<BR>\n" );
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document.write( "Original Number: 72 </SPAN>\n" );
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