Question 1052003
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A bookstore has a clearance shelf with $3 books and $5 books. On Sat the bookstore sold 96 of the clearance books for a total of $400. How many of the $3 books were sold?
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<pre>
 x +  y =  96,    (1)   (the total amount of books)
3x + 5y = 400.    (2)   (the "value" equation).

Solve by any method you know.
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