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Ziggy · Answer 1 · 2017-06-11T17:47:18+0000

let n is the unknown number
the product of 23 and an unknown : 23n
85 less than the product of 23 and an unknown number: 23n - 85
85 less than the product of 23 and an unknown number is 191: 23n - 85 = 191

answer:
equation: 23n - 85 = 191

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