Question

помогите решить 7m+2(m-4)-4m=17

Answer 1

7m+2m-8-4m=17
5m=17+8
5m=25
m=5

Answer 2

7m+2(m-4)-4m=17
7m+2m-8-4m=17
7m+2m-4m=17+8
5m=25
m=25:5
m=5
Ответ: 5