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thuy82phukim
2 năm trước
Chọn đáp án -2020 + (2020 + 3) = ? A . 3 B . 4 C . 5 D. -5 x trên -4 = -4 trên x tính x A. x = 4 và -4 B. x = 5 C. x = 6 D. x = 7
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