To evaluate the expression \(-3 - (-6)\), we can make use of the property of additive inverses. Subtracting a negative number is equivalent to adding its positive counterpart.
Therefore, we can rewrite \(-3 - (-6)\) as:
\[ -3 + 6 \]
Now we can calculate:
\[ -3 + 6 = 3 \]
So, the expression evaluates to 3.
Thus, the correct response from the options you provided is:
Because −3 + 6 is an equivalent expression, the answer is 3.