The sum of two numbers is 56?, and the difference between the numbers is 2

Question

The sum of two numbers is 5656?, and the difference between the numbers is 22

Answer 1

using algebra...

x and x+2 are the numbers, or

x and x-2 are the numbers

x+x+2=56

2x+2=56

2x=54

x=27 and x+2=29

 

using arithmetic...

56/2=28

28 and 28 do not work because they are equal

28-1=27 and 28+1=29 do work