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Twice a number increased by 12 is equal to 31 less than three times the number find the number

User Zoidberg
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1 Answer

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Let n be a number

3n - 31 = 2(n + 12)
3n - 31 = 2n + 24
3n - 2n = 24 + 31
n = 55
User Yurii Kyrylchuk
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