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20 12 PEP seventh grade mathematics textbook exercises 107 Page 3.4 Comprehensive application of ancient questions and 106 Page 1 and 2 exercises 8062.
Question 3: Solution: Suppose this dress is worth X silver coins. According to the meaning of the question:

The solution of1/7 (x+2) =112 (x+10) is x = 9.2.

There are no textbooks at hand, and there are no exercises on page 106 in the downloaded electronic textbooks.

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