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Toán Lớp 6: Tìm số a, biết rằng: ( 1,257 x a + 1,743 x a) – 2008 = 2009

Home/ Toán Lớp 6: Tìm số a, biết rằng: ( 1,257 x a + 1,743 x a) – 2008 = 2009

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