Question
The mass of Box S is 149 kg. The mass of Box U is 23 kg more than the mass of Box S. The mass of Box T is 57 kg less than the mass of Box U. What is the mass of Box T?
4 m

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The mass of Box S is 149 kg. The mass of Box U is 23 kg more than the mass of Box S. The mass of Box T is 57 kg less than the mass of Box U. What is the mass of Box T?