Question

A two digit number is formed by either substracting 17 from nine times the sum of the digits or by adding 21 to 13 times the difference of the digits .find the number

Answer 1

If the digits are a and b, then

10a+b = 9(a+b)-17 = 13(a-b)+21

a-8b = -17
-3a+14b = 21

(a,b) = (7,3)

The number is 73

Answer 2

Kkj

Answer 3

i've been searching for the same question, with little to no luck. one website says it's 83, over here someone says it's 73.

Answer 4

Five times the sum of a number and 17 is at most 28 .