Consider this option (basic steps are marked).
 
        
        
        
Answer:
17
w  +  35
Step-by-step explanation:
You get this answer by using PEMDAS.
 
        
             
        
        
        
Reduce the number of terms in the expression by operating on like terms 
for example
Simplify
x^2 - 3x + 4 + x^2 + 6x - 6
the like terms are the x^2 and x^2 , -3x and 6x and  4 and -6 
so we have
x^2 + x^2 - 3x + 6x + 4 - 6
= 2x^2 + 3x - 2
This is the simplified form of the original expression