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3 years ago

15

There are three shelves.each shelf has 28 books.there is also a stack of some more books.there are a total of 85 books.which equ

ation represent this situation

1 answer:

Charra [1.4K]3 years ago

8 0

3s+28=85, take away 28 from both sides of the equals to give you 3s=57, divide by 3 on both side to give you s=19.

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