Question

assignment
combine like terms and distributive property
multiple-choice question
what do you get when you distribute -9?
$\boldsymbol{-9x - 9}$
$\boldsymbol{x - 9}$
$\boldsymbol{-9x + 1}$
$\boldsymbol{-9x + 9}$
try this one on your own
$2(7x - 4) - 9(x + 1)$
$14x - 8$
rewatch

Explanation:

Step1: Apply distributive property

$-9(x + 1) = (-9) \times x + (-9) \times 1$

Step2: Calculate each term

$(-9) \times x = -9x$, $(-9) \times 1 = -9$

Step3: Combine the terms

$-9x + (-9) = -9x - 9$

Answer:

-9x - 9