Question

How do you simplify `-2[9 - (x + 7)]`?

Answer 1

`2x-4`

Explanation:

Begin by distributing the bracket which is inside the 'square bracket'
That is.

`-2[9-x-7]`

and simplifying to obtain.

`-2(-x+2)`

distribute to obtain simplification.

`rArr-2(-x+2)=2x-4`