Problema Solution

The Sum of the digits of a two-digit number is 14. The difference between the ten's digit and the unit's digit is 2. Find The number. [let t= ten's digit and u= unit's digit.]

Answer provided by our tutors

Let the digit at units place = x

and the digit at tens place = y

given

x+y = 14

y - x = 2

adding equaiton first and second gives us 

2y = 16 => y = 8

x = 14 - y => 14 - 8 = 6

Number = 86