Решите уравнение 1/7х-11=1/9х-12

Question

Решите уравнение 1/7х-11=1/9х-12

---

Answer 1

1/7х-11=1/9х-12
9/63х-11=7/63х-12
9/63х-7/63х=-12+11
2/63х=-1
х=-1:2/63
х=-31.5
Ответ:-31.5