Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 x= 14 hope that helps you out good luck 
 
        
             
        
        
        
Remember PEMDAS - parentheses, exponents, multiply, divide, add, subtract
because multiply come before subtract, your first step would be 1/2 x 2 = 1
next, you subtract -> 15 - 1 = 14
14 is your answer
        
             
        
        
        
Answer:
40x-24y
You simplify through distribution
 
        
                    
             
        
        
        
So the unit rate would just be the numbers all added up