Problema Solution
Mary buys a bunch of books. She donates half of the books to the local library. Then,
she gives five of the books away as birthday presents. If she now has 14 books, how
many did she originally purchase.
I need the equations. Thanks a lot.
Answer provided by our tutors
let 'x' represent the number of books Mary purchased
the books she donated + the books she gave as birthday presents + 14 = the total number of books
(1/2)x + 5 + 14 = x
by solving we find:
x = 38 books
click here to see the step by step solution of the equation:
Mary originally purchased 38 books.