Answer:
Step 3 
Step-by-step explanation:
This is the right one because you are adding two thing in step two which lead to step 3
 
        
             
        
        
        
   2+      0.0+      0.05+	0.009okay so you just have to add the numbers. so you add 2+0.0+0.5+0.009. then you will get you answer. i hope this helps!!!!
        
             
        
        
        
The answer should be x=100