Question 1108883
after two fifths of its textbooks a bookstore had 810 books left. How many textbooks were in the bookstore initially 
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Let the initial number be "x".
Equation:
x - (2/5)x = 810 books
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(3/5)x = 810
(1/5)x = 270
x = 1350
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Cheers,
Stan H.
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