SOLUTION: How many liters of a 14% alcohol solution must be mixed with 20L of a 50% solution to get a 30 % solution?

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Question 94489: How many liters of a 14% alcohol solution must be mixed with 20L of a 50% solution to get a 30 % solution?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x(14%)+20(50%)=(x+20)(30%) ... .14x+10=.3x+6 ... 4=.16x ... 25=x