document.write( "Question 1072525: the sum of the digits of a number less than 100 is one fourth of the number, and the number obtained by inverting the digits exceeds the original number by 36. find the original number \n" ); document.write( "
Algebra.Com's Answer #687394 by josgarithmetic(39618)\"\" \"About 
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t, the TENS digit
\n" ); document.write( "u, the UNITS or ONES digit\r
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\n" ); document.write( "\n" ); document.write( "\"system%28t%2Bu=%2810t%2Bu%29%2F4%2C%2810u%2Bt%29-%2810t%2Bu%29=36%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"4t%2B4u=10t%2Bu\"
\n" ); document.write( "\"-6t%2B3u=0\"
\n" ); document.write( "\"2t-u=0\"
\n" ); document.write( "\"u=2t\"\r
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\n" ); document.write( "\n" ); document.write( "\"9u-9t=36\"
\n" ); document.write( "\"u-t=4\"\r
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\n" ); document.write( "\n" ); document.write( "\"2t-t=4\"
\n" ); document.write( "\"highlight%28t=4%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28u=8%29\"\r
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\n" ); document.write( "\n" ); document.write( "Original Number, 48
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