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a textbook sold a combined total of 391 psychology and biology books in a week. the number of biology books sold was 71 less than the number of psychology books. how many text books of each kind was sold.
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a textbook sold a combined total of 391 psychology and biology books in a week. the number of biology books sold was 71 less than the number of psychology books. how many text books of each kind was sold. ​

User Vlad Nikitin
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1 Answer

5 votes

Answer:

320

Explanation:

I think you have to subtract the number and I think it will be 320

User Phenex
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7.6k points
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