Cid Sam is a way to remember
C -control S - SAME (keep the same)
I -independent A- alter
D-depend M- measure
independent- number of downloads
Dependant - money spent
        
             
        
        
        
4a + 3 = 11...subtract 3 from both sides
4a + 3 - 3 = 11 - 3...simplify
4a = 8 ....divide both sides by 4
(4/4)a = 8/4...simplify
1a, or just a = 2 <==
        
                    
             
        
        
        
2/3 cup pineapple for every 1/3 cup OJ
 there are three 1/3 cups in 1 cup
 so multiply 2/3 by 3
 2/3 * 3 = 6/3 = 2
 2 cups of pineapple juice is needed
 
        
             
        
        
        
The next step would be:
-0.4 -0.4
explanation:
 You would need to move the variables to one side so minus the 0.4 would move the numerical number to the other side which leave the variable to the other side.
Hope this makes sense :)