Question

Simplify.

−9x − 3 − (5x + 3) − 7

A) −9x − 7
B) −4x − 13
C) −9x − 13
D) −14x − 13

Answer 1

`\boxed{\tt D)-14x-13}`

Explanation:

`\tt -9x-3-\left(5x+3\right)-7`

`\tt \left(5x+3\right)-9x-3-7`

`\tt -\left(5x+3\right)-9x-10`

`\tt -5x-3-9x-10`

`\boxed{\tt -5x-9x}\:\boxed{\tt-3-10}`

`\tt -14x-13`

~

Answer 2

D) -14x-13

Explanation:

-9x -3 - (5x+3) -7

-9x -3 -5x-3-7

-14x-13