This means that, for example:
15 - 5 = 15 + (-5)
15 - (-5) = 15 + 5
Knowing this relationship can both help you do the actual calculations, and assist you in solving equations.
Subtracting an integer is the same as adding the additive inverse. In symbols: a - b = a + (-b), where "-b" is the additive inverse (the opposite) of b.
It's pretty much the exact same. Subtracting is the same as adding a negative number. Foe example, five minus three is the same as five plus negative three.
Let x and y be two integers. x - y = x + (-y)
No- adding negative numbers is like adding positive numbesr , except the answer is negative.
The answer will have the same sign as the number with the larger magnitude.