SOLUTION: number of pages of a book the printer used 2,989 digits. how many pages does the book have?

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Question 100088: number of pages of a book the printer used 2,989 digits. how many pages does the book have?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(x-900-90-9)*4=2989-2700-180-9 ... 9 1-digit, 90 2-digit, 900 3-digit

4x-3996=100 ... 4x=4096 ... x=1024