Algebra 2 questions combining like terms plz help!?

Question

3y- (4y+6x) i dont get what to do with the - sign after 3y .. i need the answer to figure out how to do it plz help

Answer 1

With the barckets you should think of it like this.

-4y -(+6)

You get 3y-4y-6x.

Combine like terms and you get -y-6x

Answer 2

That minus sign changes both signs inside the parentheses.

So it becomes 3y - 4y - 6x which is -1y - 6x or just -y - 6x