SOLUTION: For every positive 2-digit number, x, with tens digit t and units digit u, let y be the 2-digit number formed by reversing the digits of x. Which of the following expressions is e

Question 258731: For every positive 2-digit number, x, with tens digit t and units digit u, let y be the 2-digit number formed by reversing the digits of x. Which of the following
expressions is equivalent to x − y ?
a) 9(t − u) b) 9(u − t) c) 9t − u d) 9u − t e) 0

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

a) is the correct answer
Example:

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