Помогите... 6*(с*9)=36 936

Question

Помогите...
6*(с*9)=36 936

Answer 1

6*(с*9)= 36936
6*9с= 36936
54с= 36936
с= 36936:54
с= 684

Answer 2

6*(с*9)=36936
с*9=36936/6
с*9=6156
с=6156/9
с=684
Ответ:684