Question
The total mass of Pierre and Daniel is 60.9 kg. The total mass of Daniel and Rael is 48.7 kg. If the total mass of Pierre and Rael is 59 kg, find the mass of Rael.
4 m

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The total mass of Pierre and Daniel is 60.9 kg. The total mass of Daniel and Rael is 48.7 kg. If the total mass of Pierre and Rael is 59 kg, find the mass of Rael.