-x - 9 

You want to get x by itself.
First subtract 9 from both sides of the equation.
-x - 9 

    +9                 +9
-x 

Then divide -1 on both sides.
-x/-1 

I'm pretty sure when you divide a negative number when solving inequalities, you switch the sign.
x 
 
        
             
        
        
        
Answer:  (b) A
<u>Step-by-step explanation:</u>
A: the center of the circle
B: the diameter of the circle
C: the radius of the circle
D: <em>not sure, could be the perimeter</em>
<em />
Circles are named by their center, so this is named "Circle A".
 
        
                    
             
        
        
        
Hello there! Shelly ran D) 5/10 more miles than Ben.
To find the difference between the two runner's distances, subtract the smaller distance from the greater distance. 
8/10 - 3/10 = 5/10
Since there is a difference of 5/10, this means Shelly ran 5/1 more miles.
I hope this helps, & have a great rest of your day! :) 
 
        
             
        
        
        
Answer:
−4,−2)∪(0,1), If it is not the correct answer, please notify by texting