This question more or less tries to trick you with the positive number in parentheses, as you would carry out subtraction as normal. However, since the number you are subtracting from is also negative, it would be easier to think about it as adding two positives, and setting aside the negative symbol for the answer.
-282 - 1017 = -(282 + 1017) = -(1299) = -1299
which is your final answer.
-282 - (+1017) = -1299.
Hope that helped! =)