Question

2. Simplify -6x - (-9x+4)

Answer 1

`\huge\boxed{-6x-(-9x+4)=3x-4}`

Explanation:

`-6x-(-9x+4)=-6x-1(-9x+4)\\\\\text{Use the distributive property}\ a(b+c)=ab+ac\\\\=-6x+(-1)(-9x)+(-1)(4)\\\\=-6x+9x-4\qquad\text{combine like terms}\\\\=(-6x+9x)-4=3x-4`

Answer 2

3x-4

Explanation:

Inside of the parenthesis, it cannot be further simplified, so we moe to distributing.

=-6x+9x-4

Combine like terms

=3x-4

cannot be further simplified on its own