because when you go into negative (minus) numbers, you can still get even numbers, like -2, -4 and -6.
"IT IS ALWAYS A ODD"
No. You an get an infinite amount of minus numbers, and any of those which are positive when they are even will be positive when they are negative.
Yes
Any even number minus another even number is either even or zero. Any odd number minus another odd number is also either even or zero.
There is need for a conjecture. It is an easily proven fact that an even number minus an even number is always an even number.
even
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. Even minus odd is odd.
= The sum of two numbers is -42 the first number minus the second number is 52 Find the numbers? =
YES
If there is an even number of minus signs, the answer is positive; if there is an odd number of minus signs, the answer is negative.
There is no answer to the question. An even number minus an even number gives an answer that is even. So the difference of two evens cannot be 25.