X
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![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Bài 1 : Tìm x biết x
Z
a)
b) 133% + 48% \leq
\leq 200% - 15%
c) 2.
+18 = 72
d)
e)
a)
b) 133% + 48% \leq
c) 2.
d)
e)
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