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Suppose that we agree to pay you ​9¢ for every problem in this chapter that you solve correctly and fine you ​5¢ for every problem done incorrectly. If at the end of 42 problems we do not owe each other
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Suppose that we agree to pay you ​9¢ for every problem in this chapter that you solve correctly and fine you ​5¢ for every problem done incorrectly. If at the end of 42 problems we do not owe each other any​ money, how many problems did you solve​ correctly?

User Mayank Garg
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The answer is 10 problems. Hope it helps
User Anton Rusak
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