SOLUTION: How many mL of a 6% acidic solution must be added to 20 mL of a 14% acidic solution to reduce the acidity level to 12%

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Question 45998: How many mL of a 6% acidic solution must be added to 20 mL of a 14% acidic solution to reduce the acidity level to 12%
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
0.06(x) + 0.14(20) = 0.12(x + 20)
0.06x + 2.8 = 0.12x + 2.4
0.4 = 0.06x
40/6 = x = 6.6667