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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.

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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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.

User Albina
by
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1 Answer

5 votes

10a + b = 10b + a - 9

a + b = 11

User Fliskov
by
8.0k points
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