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Toán Lớp 7: |x-4|+|x-6|=2,|3.x+7|+3|2-x|=13,|x+2|+|3.x-1|+|x-1|=3 mỗi câu 10 điểm

Home/ Toán Lớp 7: |x-4|+|x-6|=2,|3.x+7|+3|2-x|=13,|x+2|+|3.x-1|+|x-1|=3 mỗi câu 10 điểm

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