Question

thd sum of two even number is always an _______ number​

Answer 1

Substituting (x+y) by n in 2(x+y), we obtain 2n which is clearly an even number. Thus, the sum of two even numbers is even.

Answer 2

Answer:

Substituting (x+y) by n in 2(x+y), we obtain 2n which is clearly an even number. This, the sum of two even numbers is even.