Step 1. You must write down/ underline all the numbers given in the problem. 
Step2. Identify all the unknown variable such as x, y, a, b [those are the most common ones].
Step 3 Identify what sign of operation your working with... It can be +,-,×,÷. 
Step 3 write down all your terms on the LHS of the equation.
Step 4. Equate all the constant on the RHS of the equation. If the constant was negative It would be positive and vic versa 
Step. Solve your problem
        
             
        
        
        
Answer: -52
Step-by-step explanation: I just know
 
        
             
        
        
        
The answer to this question is C . 4to 3