- #1

evosy1978

- 6

- 0

I have what you may think is a basic question... I just wanted to query it.

Its to do with cancelling out brackets.

so

2x-(x+3) = 2x-x-3 = x-3

I think I understand why the +3 inside the brackets changes to a -3. (its because of the minus before the brackets)

So what about the +x inside the brackets aswell? why does this not change to a -x aswell?

and therefore ending up with 2x - -x -3 and then 2x + x - 3

2x - (x+3)

2x - -x -3

2x + x -3 = 3x-3

I hope I have explained my way of thinking clearly? (even though I know its wrong could someone explain why its wrong)

Thanks