Answer:
4 books
Explanation:
You want to know the number of books Gia got yesterday from the library if she got 5 today, turned in 3, and now has 6.
Equation
Let b represent the number of books Gia checked out yesterday. After getting 5 more and turning in 3, the total number she has is ...
b +5 -3 = 6
b +2 = 6 . . . . . . simplify
b = 4 . . . . . . . . subtract 2
Gia got 4 books from the library yesterday.
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