Question
The total mass of Sebastian, Avery and Scarlett is 129 kg. Avery's mass is 3 kg more than Sebastian's and 30 kg more than Scarlett's. Find the total mass of Sebastian and Scarlett.
4 m

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The total mass of Sebastian, Avery and Scarlett is 129 kg. Avery's mass is 3 kg more than Sebastian's and 30 kg more than Scarlett's. Find the total mass of Sebastian and Scarlett.