Answer:
I think the answer is 3a-y-6c-130.
Explanation:
You have to collect the like terms.
So, 5a and -2a are both like terms and when you do that you get 3a.
After that the problem is 3a+3y-6c-4y-130.
Then, you do +3y and -4y and you get -y.
After that the problem is 3a-y-6c-130.
So your answer is 3a-y-6c-130.
