Answer:
The number is 63.
Step-by-sep explanation:
Let the 2 digits be x and y where the number is xy.
x + y = 9............................(1)
Also if we subtract 27:
10x+y - 27 = 10y + x
9x - 9y = 27 Divide this through by 9:
x - y = 3 ............................(2)
Adding equations (1) and (2):
2x = 12
x = 6.
Substituting in (1):
6 + y = 9
y = 3.
