document.write( "Question 977923: The sum of two digits of a two digit number is 15. If 9 is added to it, the digits are reversed. Find the number. \n" ); document.write( "

Algebra.Com's Answer #599458 by htmentor(1343) $\"\"$ $\"About$

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This answer can be found without any algebra. Since the number is two digits and the digits add to 15,
\n" ); document.write( "the choices are 69, 78, 87, and 96. Adding 9 to 96 gives 105 a 3 digit number. Adding 9 to 87 gives 96, which isn't the reverse of 87.
\n" ); document.write( "And 69 + 9 = 78. Again, not the reverse.
\n" ); document.write( "So the answer is 78. 78 + 9 = 87 \n" ); document.write( "

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