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Q: Why does subtracting a number give the same result as adding its opposite?

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-4

28. Subtracting a negative number gives the same result as adding a positive.

Depends. If you are subtracting a bigger number from a smaller number, such as 3 - 5, you will get a negative result, -2. If you are subtracting a smaller number from a bigger number, such as 12 - 3 you will get a positive result, 9.

Subtracting

Negative 15 (-15). Subtracting a positive yields the same result as adding a negative.

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Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.

Because of the definition of addition and subtraction. When looking at a real number line: when you add you move to the left or up, when you add the opposite of a number you move in the opposite direction.

8

-4

They are both binary operations. The inverse of adding X to a number is the subtraction of X from the result and, conversely, subtracting Y from a number is the inverse of adding Y to the result.

-3. Subtracting a negative number yields the same result as adding a positive.

Zero

28. Subtracting a negative number gives the same result as adding a positive.

"No. For instance -19 - 17 = -36. Not -2 as it may seem.-5 - 34 = -39. Even though a quick glance would make it seem to be 29"That is wrong... you are subtracting a positive from a negative the question consists of subtracting a positive from a negative. 15 {a positive} - (-5) {a negative} = 20 you minus the negative sign on the -5 to make +5 but we write it just as 5.Anyways to answer the original question. Yes Subtracting a number is the same as adding it's opposite, therefore adding a positive to a positive will always result in a positive.

-2

Their difference.

Subtracting a negative is like adding a positive; the result will be positive.

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