Robert used 34 grams of iron filings in his second experiment. This is 16 grams more than twice the number of grams he used in his first experiment. How many grams of iton filings did he usein his experiment.

asked Oct 18, 2019 178k views

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34=2x + 16

18=2x

x=9

Robert used 9 grams of iron filings in his first experiment.

Brock Brown answered Oct 25, 2019

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