document.write( "Question 101122: sum of the digits of a two no. is 9 the no. obtained by interchanging the digits exceed the given no. by 27 find the given no. \n" ); document.write( "
Algebra.Com's Answer #73620 by checkley71(8403)\"\" \"About 
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X+Y=9 OR X=9-Y
\n" ); document.write( "10X+Y=10Y+X+27
\n" ); document.write( "10(9-Y)+Y=10Y+(9-Y)+27
\n" ); document.write( "90-10Y+Y=10Y+9-Y+27
\n" ); document.write( "-18Y=36-90
\n" ); document.write( "-18Y=-54
\n" ); document.write( "Y=-54/-18
\n" ); document.write( "Y=3 ANSWER.
\n" ); document.write( "X+3=9
\n" ); document.write( "X=9-3
\n" ); document.write( "X=6 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "10*6+3=10*3+6+27
\n" ); document.write( "60+3=30+6+27
\n" ); document.write( "63=63\r
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