40 - 3k + 10k = -10 - 8k - 10
40 + 7k = -10 - 8k - 10
40 + 7k = -8k - 20
40 + 7k - 40 = -8k - 20 - 40
7k = -8k - 60
7k + 8k = -8k - 60 + 8k
15k = -60
15k/15 = -60/15
k = -4
 
        
             
        
        
        
Keenly snakelike smells an kelsmeml salesmen smell. Skkensens.
        
             
        
        
        
All you have to so is divide 1968 by 4.
1968 ÷ 4 = 496.5 = 1/4
Now multiply 496.5 by 3 =  1, 489.5 = 3/4
I hope this helps! :_
        
                    
             
        
        
        
54 gallons 
Step-by-step explanation: