-8/12
add together but keep the negative
 
        
             
        
        
        
Answer:
x = 2/3
Step-by-step explanation:
combine -3 and 1.  We get -2 there, and now have:
-2 + 10x = x + 4.
Combining the x terms, we get 9x = 6, so that x = 6/9, or x = 2/3
 
        
                    
             
        
        
        
Answer:
i think its just 1cm 
Step-by-step explanation:
4-3=1 or maybe its different from what your asking
 
        
                    
             
        
        
        
Answer:
5 nights.
Step-by-step explanation:
215=35x+40