Answer:

Step-by-step explanation:
Using the rule of exponents
⇔ 
Evaluating from the inside parenthesis outwards
= -
× -
=
, then
=
= 9² = 81 , then
= 
Do you have a picture of the question or something?
Answer:
<h2>x = -3</h2>
Step-by-step explanation:
<h3>Let x= the missing number</h3><h3 /><h3>6x + 6 = x - 9</h3><h3>6x - x = -9 - 6</h3><h3>5x ÷ 5 = -15 ÷ 5</h3><h3>x = -3</h3>
Checking:
<h3 /><h3>6(-3) + 6 = (-3) - 9</h3><h3>-18 + 6 = -12</h3><h3>-12 = -12</h3>