Question
The total mass of Rebecca, Maya and Julian is 143 kg. Maya's mass is 13 kg more than Rebecca's and 21 kg more than Julian's. Find the total mass of Rebecca and Julian.
4 m

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The total mass of Rebecca, Maya and Julian is 143 kg. Maya's mass is 13 kg more than Rebecca's and 21 kg more than Julian's. Find the total mass of Rebecca and Julian.