How can you simplify - (2a-4b) - 5 (b+6a)

Distribute the negative into (2a-4b) so now ur equation is - 2a+4b - 5 (b+6a)

Then you are going to disibute your - 5 and get - 5b-6a

now your equation is - 2a+4b-5b-6a

now u simply subtract - 2a-6a which is - 8a

then you subtract 4b-5b and get - 1b or you could just say - b

now ur final answer is - 8a-b