Уравнение 8m+3m-m=200

Question

Уравнение 8m+3m-m=200

Answer 1

8m+3m-m=200
11m-m=200
10m=200
m=20
___________
8×20+3×20-20=200
200=200
Ответ:20

Answer 2

11м-1м=200
10м=200
м=200:10
м=20