![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
720:[41-(2x - 5)]=23.5
720:[41-(2x - 5)]=8.5
720:[41-(2x - 5)]=40
41-(2x - 5)=720:40
41-(2x - 5)=18
2x - 5=41-18
2x - 5=23
2.x=23+5
2.x=28
x=28:2
x=14
![](https://rs.olm.vn/images/avt/0.png?1311)
720:[41-2.x-5)]=40
41-2.x-5=720:40
41-2.x-5=18
41-2.x=18+5
41-2.x=23
2.x=41-23
2.x=18
x=18:2
X=9
720 : (41 - 2.x-5) = 23.5
720 : (41 - 2x - 5) = 8. 5
720 : (41 - 2x - 5) = 40
( 41 - 2x - 5) = 720 : 40
41 - 2x - 5 = 18
41 - 2x =18 + 5
41 - 2x = 23
2x = 41 - 23
2x = 18
x = 18 : 2
x = 9
Li-ke mik nhé! Có ji ko hiểu thì cứ hỏi nha
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =>41-(2x-5)=720:40=18
=>2x-5=23
=>2x=28
=>x=14
b: =>100x+5050=5750
=>100x=700
=>x=7
a: =>41-(2x-5)=720:40=18
=>2x-5=23
=>2x=28
=>x=14
b: =>100x+5050=5750
=>100x=700
=>x=7
![](https://rs.olm.vn/images/avt/0.png?1311)
720 : [ 41 - ( 2x - 5 ) ] = 23 . 5
720 : [ 41 - ( 2x - 5 ) ] = 8 . 5
720 : [ 41 - ( 2x - 5 ) ] = 40
41 - ( 2x - 5 ) = 720 : 40
41 - ( 2x - 5 ) = 18
2x - 5 = 41 - 18
2x - 5 = 23
2x = 23 + 5
2x = 28
=> x = 28 : 2
=> x = 14
720 : [ 41 - ( 2 x - 5 ) ] = 40
41 - ( 2 x - 5 ) = 720 : 40
41 - ( 2 x - 5 ) = 18
2 x - 5 = 41 - 18
2 x - 5 = 23
2 x = 23 + 5
2 x = 28
x = 28 : 2
x = 14
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,x-36:18=12-15\\ \Rightarrow x-2=-3\\ \Rightarrow x=-1\\ b,92-\left(17+x\right)=72\\ \Rightarrow17+x=20\\ \Rightarrow x=3\\ c,720:\left[41-\left(2x+5\right)\right]=40\\ \Rightarrow41-\left(2x+5\right)=18\\ \Rightarrow2x+5=23\\ \Rightarrow2x=18\\ \Rightarrow x=9\\ d,\left(x+2\right)^3-23=41\\ \Rightarrow\left(x+2\right)^3=64\\ \Rightarrow\left(x+2\right)^3=4^3\\ \Rightarrow x+2=4\\ \Rightarrow x=2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
720 : [ 41 - ( 56 : x - 5 ) ] = 40
41 - ( 56 : x - 5 ) = 720 : 40
41 - ( 56 : x - 5 ) = 18
56 : x - 5 = 41 - 18
56 : x - 5 = 23
56 : x = 23 + 5
56 : x = 28
x = 56 : 28
x = 2
![](https://rs.olm.vn/images/avt/0.png?1311)
720 : [ 41 - (2\(x\) - 5)] = 22.5
41 - (2\(x\) - 5) = 720 :110
2\(x\) - 5 = 41 - \(\dfrac{72}{11}\)
2\(x\) - 5 = \(\dfrac{379}{11}\)
2\(x\) = \(\dfrac{379}{11}\) + 5
2\(x\) = \(\dfrac{434}{11}\)
\(x\) = \(\dfrac{434}{11}\) : 2
\(x\) = \(\dfrac{217}{11}\)
15 - \(x\) = 7 - (-2)
15 - \(x\) = 7 + 2
15 - \(x\) = 9
\(x\) = 15 - 9
\(x\) = 6