document.write( "Question 393204: The average of the digit of a two digit number is 6 and the difference between the digits is also 6.find the number \n" ); document.write( "

Algebra.Com's Answer #279158 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Let 10x + y = a two digit number
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\n" ); document.write( "The average of the digits of a two digit number is 6
\n" ); document.write( " $\"%28%28x%2By%29%29%2F2\"$ = 6
\n" ); document.write( "x + y = 2(6)
\n" ); document.write( "x + y = 12
\n" ); document.write( ":
\n" ); document.write( " and the difference between the digits is also 6.
\n" ); document.write( "x - y = 6
\n" ); document.write( ":
\n" ); document.write( "Add to the 1st equation
\n" ); document.write( "x + y = 12
\n" ); document.write( "x - y = 6
\n" ); document.write( "------------adding eliminates y, find x
\n" ); document.write( "2x = 18
\n" ); document.write( "x = 9
\n" ); document.write( "then
\n" ); document.write( "9 - y = 6
\n" ); document.write( "y = 3
\n" ); document.write( ":
\n" ); document.write( "find the number: 93 is the number
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