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22 July, 15:40

There are 7 books on the floor. The number of books on the shelf is two more than three times the number of the books on the floor

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Answers (2)
  1. 22 July, 16:51
    0
    23 books

    Step-by-step explanation:

    I am assuming that you want to find the number of book on the shelf.

    An expression for the number of books on the shelf is 3x + 2. Two more is represented by the + 2, and three times the number of books on the floor is represented by the 3x.

    We are given "x", which represents the number of books on the floor. This number is 7.

    To find the number of books on the shelf substitute 7 into the expression representing it.

    3 (7) + 2

    Multiply 3 and 7.

    21 + 2

    Add 21 and 2 together.

    23 books are on the shelf.
  2. 22 July, 18:01
    0
    2 more than 3 times ...

    So, 7 books on the floor.

    7*3=21

    2 more than 21, 21+2=23

    So, there are 23 books on the shelf.
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