Question

5*(c+3):6=8*(10-c):6 помогите решить равнение)))

Answer 1

(5c+15)/6=(80-8c)/6

5c+8c=80-15

13c=65

c=5

Answer 2

5C + 15 / 6 = 80 - 8C \ 6

(5C + 15) * 6 = (80 - 8C) * 6

5C + 15 = 80 - 8C

5C + 8C = 80 - 15

13C = 65

C = 65 : 13 = 5

ОТВЕТ: 5