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KDSKhoa123
2 năm trước
các bạn giúp mik . mik đg cần gấp . cảm ơn các bạn trc a, 6/7 + 5/8 : 5 - 3/16 . ( -2 ) ^ 2 tìm x a, ( 3 1/2 + 2x ) . 3 2/3 = 5 1/3 b, ( x/7 + 0,25 ) = -1/28
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