< = >( a + 350 ) : a = 26

26a = a + 350

25a = 350

a = 14

\(a\left(+350\right)\)

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\(\frac{15.a+364}{a}\)= 697:17=41

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

\(\frac{364}{a}\)=41-15=26

       a=364:26

        a=14

368-27=\(\frac{a+350}{a}\)+315

314=\(\frac{a+350}{a}\)+315

\(\frac{a+350}{a}\)=341-315

\(\frac{a+350}{a}\)=26

a+350=26.a

26.a-a=350

(26-1).a=350

25.a=350

     a=350:25

     a=14

\(92.4-27=\frac{x+350}{x}+315\)

\(< =>368-27=\frac{x+350}{x}+315\)

\(< =>341=\frac{x+350}{x}+315\)

\(\frac{x+350}{x}=341-315\)

\(\frac{x+350}{x}=26\)

\(\left(x+350\right):x=26\)

\(x+350=x.26\)

\(350=x.25\)

\(x=350:25\)

\(x=14.\)

                                                           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

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.