Answer: y=38 
x=38
z=109
Step-by-step explanation:
because
 
        
                    
             
        
        
        
Answer:it has four side 
Step-by-step explanation:
idito
 
        
             
        
        
        
Answer:
In basicallity if a question such as this pops up, the correct way to go would first be to graph this. y=x-4 would be equivalent to x=4. 
My paper work is below:
y = x - 4
0 = x - 4
-x = -4
x = 4
Hope this helped..
 
        
             
        
        
        
Answer:
Try taking a screen shot as this is indecipherable. 
Step-by-step explanation: