Question
The total mass of Billy and Justin is 68.2 kg. The total mass of Justin and Henry is 50 kg. If the total mass of Billy and Henry is 68 kg, find the mass of Henry.
4 m

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The total mass of Billy and Justin is 68.2 kg. The total mass of Justin and Henry is 50 kg. If the total mass of Billy and Henry is 68 kg, find the mass of Henry.