2,3,9,18,45,99,

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2,3,9,18,45,99,2,3,9,18,45,99,2,3,9,18,45,99,(99-45)/18=3(45-18)/9=3(18-9)/3=3所以(X-99)/45=3X=234高手啊高

2,3,9,18,45,99,
2,3,9,18,45,99,

2,3,9,18,45,99,
(99-45)/18=3
(45-18)/9=3
(18-9)/3=3
所以
(X-99)/45=3
X=234

高手啊

高!