How can the additive inverse be used to evaluate the problem below?

Negative 3 minus (negative 6)
Because 3 + (negative 6) is an equivalent expression, the answer is –3.
Because 3 + (negative 6) is an equivalent expression, the answer is 3.
Because Negative 3 + 6 is an equivalent expression, the answer is –3.
Because Negative 3 + 6 is an equivalent expression, the answer is 3.

Because the problem is asking for the additive inverse (the opposite) of -3, we can use the additive inverse to evaluate the problem. The additive inverse of -3 is 3.