So, the negative sign in front of the brackets has an invisible 1 behind it, right? We don't usually write 1 because, for example, it would be silly to call you 1 Khushbakht, but two of you would still be 2 Khushbakhts, right?
If you were standing here and left, we would mathematically call that Khushbakht - Khushbakht = 0. That could look like 1 Khushbakht - 1 Khushbakht = 0.
Aaaaaanyway, what we really have is...
-1[x + 5]
We multiply the -1 by everything inside.
-1(x) - 1(5)
Yes, this could also be written as...
-1(x) + (-1)(5)
Hope this helps!
