Question
Julian is 7 kg heavier than Elijah and 5 kg heavier than Ahmad. The average mass of the 3 men is 84 kg. Find the average mass of Elijah and Ahmad.
2 m

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Julian is 7 kg heavier than Elijah and 5 kg heavier than Ahmad. The average mass of the 3 men is 84 kg. Find the average mass of Elijah and Ahmad.