document.write( "Question 1101100: A number consists of two digit whose sum is 9. the Number formed by revising the digits exceeds twice the original number by 18. find the original number. \n" ); document.write( "
Algebra.Com's Answer #715674 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
First sentence means, number might be any of 18, 27, 36, 45, 54, 63, 72, 81.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "t for TENS
\n" ); document.write( "u for ONES
\n" ); document.write( "---------------------------------------------------------------------
\n" ); document.write( "the Number formed by revisingREVERSING the digits exceeds twice the original number by 18.
\n" ); document.write( "---------------------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"highlight_green%28t%2B10u-2%2810t%2Bu%29=18%29\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"t%2B10u-20t-2u=18\"
\n" ); document.write( "\"-19t%2B8u=18\"
\n" ); document.write( "\"8u-19t=18\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "System: \"system%288u-19t=18%2Cu%2Bt=9%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"8%289-t%29-19t=18\"
\n" ); document.write( "\"72-8t-19t=18\"
\n" ); document.write( "\"-27t%2B72=18\"
\n" ); document.write( "\"27t-72=-18\"
\n" ); document.write( "\"27t=72-18\"
\n" ); document.write( "\"highlight%28t=2%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The original number is 27.
\n" ); document.write( "
\n" );