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Posted by on Wednesday, September 29, 2010 at 11:15pm.

Amanda checked out 7 fiction books from the library. She also checked out three times as many non-fiction books. The next day, Amanda returned 5 books to the library. How many books does she have now. Write an expression to explain your answer?

  • Math - , Wednesday, September 29, 2010 at 11:17pm

    7 + 3(7) - 5 = x

    7 + 21 - 5 = x

    ? = x

  • Math - , Wednesday, September 29, 2010 at 11:17pm

    7+7(3)=28
    28-5=23

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