Maybe you could be more specific!
        
             
        
        
        
Answer:-9 
Step-by-step explanation:25-16=9 
9+16=25
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
we have

step 1
Exchange the variables (x for y and y for x)
so

Isolate the variable y
step 2

subtract 3 both sides

step 3
square root both sides

step 4
Adds 2 both sides

step 5
Let


  
        
             
        
        
        
Answer:
B
Step-by-step explanation:
Because Im MATHS SUPER MAN