Answer:
-2 , -10 & -99
Step-by-step explanation:
1) 
⇒ x + 6 = 4 
⇒ x = 4-6 
⇒ x = (-2) 
2) 
⇒x - (-4) = -6 
⇒ x + 4 = -6 
⇒ x = -6-4
⇒ x = -10 
3) 
⇒2(x-1) = -200 
⇒ x - 1 = -200/2
⇒ x - 1 = -100
⇒ x = 1 - 100 
⇒ x = (-99)
 
        
                    
             
        
        
        
7/12 as a decimal is 0.583333333
or 0.59
Hope this helps ;)
        
                    
             
        
        
        
True! they are corresponding angles.
        
                    
             
        
        
        
X*2 = 2x
Coefficient is 2.
        
                    
             
        
        
        
(7,2) is the answer.
There you go.