For simplifying the problem we must go through a simple logic rule in mathematics known as BODMAS. 
Here, 
- B = Brackets 
 - O = Orders 
 - D = Division 
 - M = Multiplication 
 - A = Addition 
 - S = Subtraction 
 
We'll be solving the above equation with this pattern. Now simplifying the equation, 








- The answer of given equation is 4.