SOLUTION: Hom many liters of 20% salt solution must be added to 68 liters of 61% salt solution to get a 37% salt solution?

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Question 345597: Hom many liters of 20% salt solution must be added to 68 liters of 61% salt solution to get a 37% salt solution?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be the number of liters of 20% salt solution.
Write the salt concentration equation.
20A%2B61%2868%29=37%28A%2B68%29
20A%2B4148=37A%2B2516
-17A=-1632
highlight%28A=96%29
96 liters of 20% salt solution need to be added.