Mathematics, 12.02.2021 06:30, dallasherncastrillo

It had a mass of 20.609 grams. She exposed the substance to a flame and carefully weighed the substance again. The substance then had a mass of 17.39 grams. Write and solve an equation to determine the amount of mass x the substance lost. with equation

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It had a mass of 20.609 grams. She exposed the substance to a flame and carefully weighed the substa...