Question
The total mass of Luke, Andrew and Samantha is 139 kg. Andrew's mass is 11 kg more than Luke's and 15 kg more than Samantha's. Find the total mass of Luke and Samantha.
4 m

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The total mass of Luke, Andrew and Samantha is 139 kg. Andrew's mass is 11 kg more than Luke's and 15 kg more than Samantha's. Find the total mass of Luke and Samantha.