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3 years ago

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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 h

is first experiment. How many grams of iton filings did he usein his experiment.

1 answer:

sweet-ann [11.9K]3 years ago

3 0

34=2x + 16

18=2x

x=9

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

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