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K
Khách
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Các câu hỏi dưới đây có thể giống với câu hỏi trên
NL
6
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KM
13
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MC
7
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2 tháng 8 2016
x - 10 + 1 = 190
x - 10 = 190 - 1
x - 10 = 189
x = 189 + 10
x = 199
AT
11
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bằng 3
(1+1+1)x10:10=3x10:10=30:10=3
Vậy = 3