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Toán Lớp 6: Bài 6. Tìm số nguyên x,y sao cho: a) (2x +1). (3-y) = 5 b) xy + x + y =

Home/ Toán Lớp 6: Bài 6. Tìm số nguyên x,y sao cho: a) (2x +1). (3-y) = 5 b) xy + x + y =

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