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12.3.3 Quiz: Solving Systems of Equations
Question 2 of 10
2 Points
ABC Bookstore sells new books, n, for $12, used books, u, for $8, and
magazines, m, for $5 each. The store earned $340 revenue last month. The
store sold 5 more used books than new books, and twice as many magazines
as new books. Using the substitution method, how many magazines, new
books, and old books did ABC bookstore sell?