What is 18 minus a negative 18?

Answer 1

When subtracting a negative number, you can think of it as adding the positive equivalent. In this case, 18 minus a negative 18 is the same as 18 plus 18, which equals 36. This is because subtracting a negative number is equivalent to adding its positive counterpart.

Answer 2

Since minus a negative is the same as a plus, then 18 - (-18) is the same as 18+18 = 36