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Let the unknown number be n.

(n x 32) - 7 = 68

n x 32 = 68 + 7 = 75

9n = 75

n = 75/9 = 8⅓ Another answer: the above answer is correct in one interpretation on the text based question. Alternatively you could read it as (3n)^2 - 7 = 68 (3n)^2 = 75 9 n^2 = 75 n^2 = 8.33 n = 2.89 however I suspect you were trying to describe: 3 (n^2) - 7 = 68 3 (n^2) = 75 n^2 = 25 n = 5

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14y ago

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