\(697:\frac{15x+364}{x}=17\)

\(\left(=\right)\frac{15x+364}{x}=41\)

\(\left(=\right)15x+364=41.x\)

\(\left(=\right)41x-15x=364\)

\(\left(=\right)26x=364\)

\(\left(=\right)x=14\)

\(697:\frac{15x+364}{x}=17\)

\(\Rightarrow\frac{15x+364}{x}=697:17\)

\(\Rightarrow\frac{15x+364}{x}=41\)

\(\Rightarrow15x+364=41x\)

\(\Rightarrow41x-15x=364\)

\(\Rightarrow26x=364\)

\(\Rightarrow x=364:26\)

\(\Rightarrow x=14\)

Vậy x = 14

_Chúc bạn học tốt_

\(697:\frac{15x+364}{x}=17\)

\(\frac{15x+364}{x}=697:17\)

\(\frac{15x+364}{x}=41\)

\(15x+364=41x\)

\(41x-15x=364\)

\(26x=364\)

\(x=364:26\)

\(x=14\)

Vậy \(x=14\)

15x+364= 41x

41x - 15x = 364

26x = 364 

X= 364 : 26 

X = 14

Tk cho mình nha yêu nhiều! Chúc bạn học tốt!

    ( 15x + 364 ) : x = 697 : 17

<=> ( 15x + 364 ) : x  = 41

<=>      15x  + 364  = 41x

<=>            364        = 26x

<=>            x             = 364 : 26

<=>             x            = 14 

    Vậy x = 14

                 ~ Hok tốt ~

a, \(\left(2x-4\right)\left(3x+12\right)=0\)

\(\Rightarrow\orbr{\begin{cases}2x-4=0\\3x+12=0\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}2x=4\\3x=-12\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=2\\x=-4\end{cases}}\)

b, \(697\div\frac{15x+364}{x}=17\)

\(\Rightarrow\frac{15x+364}{x}=697\div17\)

\(\Rightarrow\left(15x+364\right)\div x=41\)

\(\Rightarrow15x+364=41x\)

\(\Rightarrow15x-41x=-364\)

\(\Rightarrow-26x=-364\)

\(\Rightarrow x=-364\div\left(-26\right)\)

\(\Rightarrow x=14\)

697:(15x+364):x=17

=> 15+360:x = 697:17=41

=> 360:x=41-15=26

=> x=360:26=180/13

92.4-27=(x+350):x+315

=> 1+350:x+315=341

=> 350:x = 341 -316=25

-> x=350:25=14

720:(41-(2x-51)=2³.5

=> 41-(2x-51)= 720 :40=18

=> 2x=41-18+51=74

=> x=74:2=37

(x+1)+(x+2)+(x+3)+...+(x+100)=5750

=>(x+x+...+x) +(1+2+3+..+99+100)=5750

=> 100.x +(100+1).100:2= 5750

=>100.x= 5750-5050=700

=> x=700:100=7

( L-i-k-e )

697 : (15x + 364) : x = 17

=> 15 + 360 : x = 697 : 17 = 41

=> 360 : x = 41 - 15 = 26

=> x = 360 : 26 = 180/13

92.4 - 27 = (x + 350) : x + 315

=> 1 + 350 : x + 315 = 341

=> 350 : x = 341 - 316 = 25

-> x = 350: 25 = 14

720 : (41 - (2 x - 51) = 2³.5

=> 41 - (2 x -51) = 720 : 40 = 18

=> 2x = 41 - 18 + 51 = 74

=> x = 74 : 2 = 37

(x + 1) + (x + 2) + (x + 3) +...+ (x + 100) = 5750

=>(x + x +...+ x) +(1 + 2 + 3 +...+ 99 + 100) = 5750

=> 100.x + (100 + 1).100 : 2 = 5750

=>100.x = 5750 - 5050 = 700

=> x = 700 : 100 = 7

1/ =>[ (10 - x) . 2 + 5 ] : 3 = 5

=> (10 - x) .2 + 5 = 15

=> (10 - x) . 2 = 10

=> 10 - x = 5

=> x = 5

2/ => (15x + 364) : x = 41

=> 15x + 364 = 41x

=> 26x = 364

=> x = 14

\(697:\left(15x+364\right):x=17\)

\(\Leftrightarrow697:\left(15x+364\right)=17x\)

\(\Leftrightarrow697=17x\left(15x+364\right)\)

\(\Leftrightarrow255x^2+6188x-697=0\)

\(\Leftrightarrow nghiem-xau-minh-khong-lam-nhe!\)

(15x+364):x=697:17=41

15x+364=41x

364=41x-15x=26x

x=364: 26=14