100+1000-289+973=?[nhanh tay mik tick cho nha mik like cho nua nha]
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LD
13
![](https://rs.olm.vn/images/avt/0.png?1311)
3 tháng 11 2021
bằng 300 nha
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11 tháng 7 2016
Tìm y
y - 105 : 21 = 15
Giúp mik nha ! Hãy trình bày ra nhé ! Thank you
11 tháng 7 2016
\(315+\left(125-y\right)=435\)
\(\Rightarrow125-y=435-315\)
\(\Rightarrow125-y=120\)
\(\Rightarrow y=125-10\)
\(\Rightarrow y=5\)
TL
10
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
BD
8
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
S
4
![](https://rs.olm.vn/images/avt/0.png?1311)
= 1784 nha
100 + 1000 - 289 + 389
= 88