SOLUTION: How many litres of 12% sodium hypochlorite solution are needed to make 100 litres of 2% sodium hypochlorite solution?

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Question 318417: How many litres of 12% sodium hypochlorite solution are needed to make 100 litres of 2% sodium hypochlorite solution?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
0.12x = (100+x)0.02
0.12x=1+0.02x
multiply by 100
12x=100+2
12x=102
x=8.5
8.5 liters