3n+4m-2/7n - 5-4n-10m/7n упростите выражение

Question

3n+4m-2/7n - 5-4n-10m/7n упростите выражение

Answer 1

Смотри здесь............

---

Answer 2

3n+4m-2-5+4n+10m / 7n = 7n+14m-7 / 7n= n+2m-1/ n =1 + 2m/n - 1/n