SOLUTION: if two integers are both odd then what is there sum?

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Question 476348: if two integers are both odd then what is there sum?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

The sum of two odd integers is even.
proof:
odd_integer+=+2j+%2B+1 or 2j+-+1,
Let j and r be any even integer.
= %28+2j+%2B+1+%29+%2B+%28+2r+%2B+1+%29
= 2j+%2B+1+%2B+2r+%2B+1
= 2j+%2B+2r+%2B+2
= 2%28j+%2B+r+%2B+1%29

Now let j+%2B+r+%2B+1+=+n:
= 2%28n%29+=+even