Question

sum of two digits number is 9 qhen we interchange

Answer 1

Answer: plz complete the que

Step-by-step explanation:

Answer 2

Let the two digits of the number be x and y.

x+y = 9 …(1)

(10x+y)-(10y+x) = 27, or

9x-9y = 27, or

x-y = 3 …(2)

Add (1) and (2)

2x = 12, or x = 3, so y = 9–6 = 3.