Question

Решите уравнение
помогите пжл дам 10 б​

Answer 1

Ответ:

(19n-6n):4=26

13n:4=26

13n=26*4

13=104

n=104:13

n=8

21m:18=7

21m=7*18

21m=126

m=126:21

m=6

(16*6+5*6):18=7

9n=351:13

9n=27

n=27:9

n=3

Answer 2

(19n - 6n) : 4 = 26
13n : 4 = 26
13n = 26 • 4
13n = 104
n = 104:13
n = 8

(16m+5m):18=7
21m:18=7
21m=7•18
21m= 126
m = 126:21
m= 6

(17n-8n) •13 = 351
9n= 351:13
9n= 27
n=27:9
n=3