92.4-27=x350/x+315
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KUDO SHINICHI:
Bài làm:
\(92.4-27=x+\frac{350}{x}+315\)
\(368-27=x+\frac{350}{x}+315\)
\(341=\frac{x}{350+315}\Leftrightarrow341=x:350+315\)
\(341=x:665\)
\(x=665.341\)
\(\rightarrow x=226765\)
Vậy x=226765
:3, Chúc bạn học tốt!!
92.4-27=x+350/x +315
368 - 27 = x+350 : x + 315
341 = x : (350 + 315)
341 = x : 665
x = 665 x 341
x = 226765
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(92.4-27=\left(x+350\right):x+315\)
\(\Leftrightarrow368-27=\left(x+350\right):x+315\)
\(\Leftrightarrow341=\left(x+350\right):x+315\)
\(\Leftrightarrow\left(x+350\right):x=341-315\)
\(\Leftrightarrow\left(x+350\right):x=26\)
\(\Leftrightarrow\left(x:x\right)+\left(350:x\right)=26\)
\(\Leftrightarrow1+350:x=26\)
\(\Leftrightarrow350:x=26-1\)
\(\Leftrightarrow350:x=25\)
\(\Leftrightarrow x=\dfrac{350}{25}=14\)
Vậy x=14
![](https://rs.olm.vn/images/avt/0.png?1311)
92.4-27=(x+350) : x + 315
368-27=x : x + 350 : x + 315
341=1+350 : x +315
341-315-1=350 : x
25=350 : x
350 : 25=x
14=x
vậy x=14
![](https://rs.olm.vn/images/avt/0.png?1311)
\(92.4-27=\frac{x+350}{x}+315\)
\(< =>368-27=\frac{x+350}{x}+315\)
\(< =>341=\frac{x+350}{x}+315\)
\(\frac{x+350}{x}=341-315\)
\(\frac{x+350}{x}=26\)
\(\left(x+350\right):x=26\)
\(x+350=x.26\)
\(350=x.25\)
\(x=350:25\)
\(x=14.\)
Đáp số : 14.
92.4 - 27 = ( x+ 350) / x +315
hay 341 = (x+ 350) / x +315
=> 26 = (x+ 350) / x
=> 26x = x + 350
=> 25x = 350
=> x= 14
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
điều kiện x khác 0
suy ra: 341= (x+350)/x +315
26= (x+350)/x
26x = x +350
suy ra x=14
\(92.4-27=\dfrac{x+350}{x}+315\)
\(\Rightarrow366=1+\dfrac{350}{x}+315\)
\(\Rightarrow366=316+\dfrac{350}{x}\)
\(\Rightarrow50=350:x\)
\(\Rightarrow x=7\)
![](https://rs.olm.vn/images/avt/0.png?1311)
(x+350):x+315=92.4-27
(x+350):x+315=368-27
(x+350):x+315=341
x+350:x=341-315
x+350:x=26
x+350=26.x
350-26=x2
324=x2
Suy ra x=18
![](https://rs.olm.vn/images/avt/0.png?1311)
Lời giải là
92.4−27=a+350a+315
368−27=a+350a+315
341=a+350a+315
a+350a=341−315
a+350a=26
a+350=26.a
26.a−a=350
(26−1).a=350
25.a=350
a=350:25
a=14.