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Q: Why is a even number plus an even number equal to an even number?

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A + 2a = 3a

Your question is incomplete. Adding an even number with an odd number will always result in an odd number. Multiplying an even number with an odd number will always result in an even number.

An odd number plus an odd number will be an even number. Odd number A is (even number + 1) Odd number B is (even number + 1) A + B = (even number + 1) + (even number + 1) = even number + even number + 2 Since all even numbers are divisible by 2 and 2 is divisible by 2, each part of the result is divisible by 2, so the sum as a whole is divisible by 2, which means it is an even number.

A negative+ a negative= to a negative number.

n + 2n = 3n

Related questions

An even number.

An odd number plus an even number will always be an odd number.

In normal arithmetic, never.

An even number

Yes.

Even

No it will not.A negative number plus a negative number will be a number further from zero - even more negative!

No. It can only become even more negative.

Yes, an even number plus an even number is always even. Also, and odd number plus an odd number is always even.

It is an even number.

All multiples of even numbers will equal an even number.

Any odd number can be written as an even number plus one. Any even number plus any other even number makes an even number. Add one makes an odd number. So an odd number plus an even number is always an odd number. Algebraically, any odd number can be written as 2a+ 1 where a is a whole number. Any even number can be written as 2b, where b is a whole number. Add them together, the sum is 2(a + b) + 1, which is odd.

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