Question 1110423
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<pre>
The correct equation is


8.75*b + 67600 = 25*b


with the solution  b  = {{{67600/(25-8.75)}}} = 4160 books.
</pre>

<U>Be aware !</U>:  &nbsp;&nbsp;The equation by&nbsp; @josgarithmetic&nbsp; was &nbsp;&nbsp;<U>W R O N G</U>.