SOLUTION: how many liters of a 12% salt solution must be added to 10 liters of a 25% salt solution to get a 20% salt solution

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Question 729926: how many liters of a 12% salt solution must be added to 10 liters of a 25% salt solution to get a 20% salt solution
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
v = liters of 12% salt solution.

%2812v%2B25%2A10%29%2F%2810%2Bv%29=20
Solve for v.