Question

find two consecutive positive integers whose sum is 63

Answer 1

let x be a positive integer
by the problem,
x+(x+1)=63
2x=62
x=31
the numbers are 31 and 32

Answer 2

let the consecutive integers be x and x+1

a/q

x+x+1=63
2x=63-1
x =62/2
x =31

the other integer will be x+1=31+1=32