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While organizing his bookshelf, Michael noticed that he had eight more science-fiction novels than spy novels. If he owns 26 science-fiction and spy novels, how many of each type of novel does he own? Explain how you found your solution. Homework Help ✎

Use guess and check to find your answer.

Make three columns: one for spy novels, one for science fiction novels, and one for the total.

Remember that the spy novels + 8 equals the number of science fiction novels Michael has.

He owns 9 spy novels and 17 science fiction novels.