Find the Hidden Number! 🔓 #1272
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Consider a positive integer n. If you multiply n by 3, add 7, and then divide the result by 2, you get the same number as if you had simply added 9 to n. What is the value of n? |
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Replies: 1 comment 5 replies
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(3n + 7) / 2 = n + 9 |
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Good job!🎉🎉 |
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lol, I'm aiming for the gold badge. |
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OK, then ask some questions in the discussion too! I want that badge too! |
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If I mark my reply as the answer, does it contribute to earning the badge? 🤔 🤔 |
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If you answer your own question? I doubt that. |
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(3n + 7) / 2 = n + 9
3n + 7 = 2n + 18
n = 11