Question
Farmer Ethan has 4 dogs. The mass of Dog U is the same as the average mass of the 4 dogs. Dog V weighs 6 kg less than the average mass of the 4 dogs. The mass of Dog W is 9 kg more than the average mass of the 4 dogs. The mass of Dog X is 6 kg. Find the total mass of the 4 dogs.
3 m

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Farmer Ethan has 4 dogs. The mass of Dog U is the same as the average mass of the 4 dogs. Dog V weighs 6 kg less than the average mass of the 4 dogs. The mass of Dog W is 9 kg more than the average mass of the 4 dogs. The mass of Dog X is 6 kg. Find the total mass of the 4 dogs.