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David is reading a 290-page book. He has read 175 pages so far. If n = the number of pages he has left, which equation best describes this situation

1 Answer

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Was 290 pages.
Read 175 pages.
Left (290 - 175) pages, at the same time he has left n pages.
So,
290 -175 = n
We can rewrite it as
290 =n+175,
so the answer is

C. 175 + n =290
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