Question
The total mass of Fred and Cody is 47.6 kg. The total mass of Cody and Xavier is 49 kg. If the total mass of Fred and Xavier is 51 kg, find the mass of Xavier.
4 m

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The total mass of Fred and Cody is 47.6 kg. The total mass of Cody and Xavier is 49 kg. If the total mass of Fred and Xavier is 51 kg, find the mass of Xavier.