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2 năm trước
Help me please 6 > 6 a) 17 + x = 2 - 2x b) -3 + 2 . |5 - x | = 7 c) - ( a - 3 ) = a + 3 [ là đúng hay sai ] P/S : Có bác nào được ở nhà thêm tuần sau nữa hơm ._.
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