Hugh bought some magazines that cost $ 3.95 each and some books that cost $ 8.95 each. I have spent a total of $ 47.65. If Hugh bought 3 magazines, how many books did I buy? The equation that models the problem is 3.95m + 8.95b-47.65, where is the number of magazines and b is the number of books

For how many books he got : 4

This is but adding up 3 of $3.95 to get the total of $11.85

You then want to subtract that from $47.65 to get $34.80

You subtract that by the $8.95 4 times so you see he bought 4 books

After you talk about how many books did he buy after that sentence I'm not sure what your saying