Do I use pemdas for this problem, if I do, how would I solve it with it?

Answer:
PEMDAS does apply but not with the parentheses
The answer is −3g−4 btw
Explanation:
Let's simplify step-by-step.
−2g+7−(g+11)
Distribute the Negative Sign:
=−2g+7+−1(g+11)
=−2g+7+−1g+(−1)(11)
=−2g+7+−g+−11
Combine Like Terms:
=−2g+7+−g+−11
=(−2g+−g)+(7+−11)
=−3g+−4