Question
The total mass of 2 mirrors and 6 plates is 9.2 kg. The total mass of 1 mirror and 2 plates is 3.2 kg. What is the mass of each plate?
4 m

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The total mass of 2 mirrors and 6 plates is 9.2 kg. The total mass of 1 mirror and 2 plates is 3.2 kg. What is the mass of each plate?