A chemist mixes 10 liters of a 20% solution with x liters of a 35% solution. Which
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A chemist mixes 10 liters of a 20% solution with x liters of a 35% solution. Which of the following expressions represents the total number of liters in the mixture?
(a) x
(b) 20 - x
(c) 35/x
(d) 10 + x
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