Question 1001845
x in the tens place
y in the digits place

 the number be 10x+y

x+y =13


reversed number = 10y+x

10y+x = 10x+y -27

9y-9x=-27

/9

y-x=-3

add the two equations
2y = 10
/2
y=5

x+y=13

y=5
x=8

85 is the number