The missing factor in the equation is -21
<h3>What is a distributive factor?</h3>
The Distributive Property introduces the multiplication operator an existing mathematical statement that involves the addition operator.
From the complete question, the equation is given as:

Where x represents the missing factor.
So, we have:

Remove brackets

Collect like terms

Evaluate the like terms

Divide both sides by -1

Hence, the missing factor in the equation is -21
Read more about the distributive property at:
brainly.com/question/2807928
Answer:
exponent i think.
Step-by-step explanation:
Answer:
x=-2
Step-by-step explanation:
subtract 8 from both sides you get -4x=-8
divide by -4
you get x=-2