Question

the sum of two numbers is 29 if one number is 5 greater than the other then the bigger number is

Answer 1

let one number be x
then the other number is 29-x

atq(according to question)
x+5=29-x
2x=24
x=12

the bigger number is 
29-12
=17

Answer 2

given X + (X + 5) = 29
2X + 5 = 29
2X = 24
X = 12
X + 5 = 17