Question
The total mass of Rael, Jonathan and Joseph is 136 kg. Jonathan's mass is 7 kg more than Rael's and 13 kg more than Joseph's. Find the total mass of Rael and Joseph.
4 m

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The total mass of Rael, Jonathan and Joseph is 136 kg. Jonathan's mass is 7 kg more than Rael's and 13 kg more than Joseph's. Find the total mass of Rael and Joseph.