dward5823 dward5823
  • 31-01-2019
  • Mathematics
contestada

When you reverse the digits in a certain two-digits number you decrease it’s value by 9. Find the number if the sum of its digits is 9.

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emblemhacks
emblemhacks emblemhacks
  • 31-01-2019

10a + b = 10b + a - 9

a + b = 11

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