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11x-7x+x=325
5x = 325
x = 325 :5
x = 65
Vậy x = 65
k cho mk nhe
![](https://rs.olm.vn/images/avt/0.png?1311)
11x - 7x + x = 325
=> 5x = 325
=> x = 325 : 5
=> x = 65
Vậy x = 65
![](https://rs.olm.vn/images/avt/0.png?1311)
x.(11-7+1)=325
x.5=325
x=325:5
x=65
Nếu mọi người thấy đúng thì tick cho mình nhé!Thanks
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
11x-7x+x=325
=>x.(11-7+1)=325
=>x.5=325
=>x=325:5
=>x=65
![](https://rs.olm.vn/images/avt/0.png?1311)
D = 3\(\dfrac{1}{2}\) \(\times\) \(\dfrac{12}{43}\) + \(\dfrac{49}{14}\) \(\times\) \(\dfrac{31}{43}\) + \(\dfrac{11}{2}\)
D = \(\dfrac{7}{2}\) \(\times\) \(\dfrac{12}{43}\) + \(\dfrac{7}{2}\) \(\times\) \(\dfrac{31}{43}\) + \(\dfrac{11}{2}\)
D = \(\dfrac{7}{2\times43}\) \(\times\) (12 + 31) + \(\dfrac{11}{2}\)
D = \(\dfrac{7}{2\times43}\) \(\times\) 43 + \(\dfrac{11}{2}\)
D = \(\dfrac{7}{2}\) + \(\dfrac{11}{2}\)
D = 9
D = 3 và 1/2 x 12/43 + 49/14 x 31/43 + 11/2
= 7/2 x 12/43 + 49/14 x 31/43 + 11/2
= 42/43 + 217/36 + 11/2
=9
# https://lazi.vn/user/tnsociu
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\text{a. }-15+x=-4\)
\(\Rightarrow x=-4+15\)
\(\Rightarrow x=11\)
\(\text{Vậy }x=11\)
\(\text{b.}35-x=-12-3\)
\(\Rightarrow35-x=-15\)
\(\Rightarrow x=35+15\)
\(\Rightarrow x=50\)
\(\text{Vậy }x=50\)
\(\text{c.}11x-7x+x=325\)
\(\Rightarrow5x=325\)
\(\Rightarrow x=325\div5\)
\(\Rightarrow x=65\)
\(\text{Vậy }x=65\)
\(\text{d.}15-\left|x-3\right|=7\)
\(\Rightarrow\left|x-3\right|=15-7\)
\(\Rightarrow\left|x-3\right|=8\)
\(\Rightarrow\orbr{\begin{cases}x-3=-8\\x-3=8\end{cases}}\)
\(\text{Trường hợp : }x-3=-8\)
\(\Rightarrow x=-8+3\)
\(\Rightarrow x=-5\)
\(\text{Trường hợp : }x-3=8\)
\(\Rightarrow x=8+3\)
\(\Rightarrow x=11\)
\(\text{Vậy }x\in\left\{-5;11\right\}\)
a,-15+x=-4 b,35-x=-12-3
x=-4+15 35-x=-12+(-3)
x=11 35-x=-15
vậy x=11 x=35+15
x=50
vẫy=50
![](https://rs.olm.vn/images/avt/0.png?1311)
420: x + 27 . 11= 325
420:x+297=325
420:x=28
x=420:28
x=15
Vậy x=15
420: x+ 27. 11= 325
=> 420: x+ 297= 325
=> 420: x= 325- 297
=> 420: x= 28
=> x= 420: 28
=> x= 15
Vậy x= 15
![](https://rs.olm.vn/images/avt/0.png?1311)
a.11x-7x+x=325
<=> 5x= 325
<=> x=65
b.5x+(-15)-3x=25
<=> 5x-3x= 25+15
<=> 2x=40
<=>x=20
![](https://rs.olm.vn/images/avt/0.png?1311)
11.x -7x+x= 325
5x= 325
x=325:5
x=65
hok tốt
cảm ơn nhá!:))