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Giới thiệu về bản thân
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2025-10-31 12:25:12
-0,5; -3/7; 2/7; 0,4
2025-10-31 12:24:44
\(a.15+\left(-0,125\right)\cdot80=15-10=5\)
\(b.-\frac{3}{10}-0,125+\left(-\frac{7}{10}\right)+1,125\)
\(=\left\lbrack\left(-\frac{3}{10}\right)+\left(-\frac{7}{10}\right)\right\rbrack+\left(1,125-0,125\right)\)
\(=-1+1=0\)
2025-10-31 12:22:26
\(x-4=\frac12\Rightarrow x=\frac12+4=\frac12+\frac82=\frac92\)
2025-10-31 12:22:05
\(a.121+\left(5x-21\right):4=127\)
\(\left(5x-21\right):4=6\)
\(5x-21=24\)
\(5x=45\)
\(x=9\)
\(b.260-2x+16=26\)
\(2x=250\)
\(x=125\)
2025-10-28 21:37:09
động từ; ngắm, bay
2025-10-28 21:18:34
\(x+\frac15=\frac32\)
\(\Rightarrow x=\frac32-\frac15=\frac{13}{10}\)
2025-10-28 21:17:58
\(\frac75:\frac{14}{25}-\frac{7}{10}\)
\(=\frac75\cdot\frac{25}{14}-\frac{7}{10}\)
\(=\frac52-\frac{7}{10}=\frac95\)
2025-10-18 19:33:44
động từ; bay
2025-10-17 05:40:01
tính từ; ầm ĩ
2025-10-15 21:52:33
tính từ: xiết