Answer :
the answer is a. because you need to remember the negatives
the answer is a and the step by step is
2a-4a = -2a so it has to have that
and
-3b + 2b = -b so your answer is clear hope this helps in the future
2a-4a = -2a so it has to have that
and
-3b + 2b = -b so your answer is clear hope this helps in the future