are you sure this is full question? 
 
        
                    
             
        
        
        
Answer:
I believe the equation your looking for is 45+x=180!
Step-by-step explanation:
The total degrees your are going to get is 180°. You already know one angle which is 45°. So you would do 180-45 to solve the equation and find the unknown angle! Hope that helped 
 
        
                    
             
        
        
        
Subtract 1:
x/4=2
multiply by 4:
x=8 which is the answer
        
             
        
        
        
Answer: X is 15. N is 100