document.write( "Question 609526: A number consists of two digits whose sum is 9. If 9 is subtracted from the number, its digits are interchanged . Find the numbers.
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Algebra.Com's Answer #383764 by flame8855(424)\"\" \"About 
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x+y =9
\n" ); document.write( "10x+y -9 = 10y+x
\n" ); document.write( "9x-9=9y
\n" ); document.write( "x-y=1
\n" ); document.write( "2x=10
\n" ); document.write( "x=5
\n" ); document.write( "y =4
\n" ); document.write( "the number is 54
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