найдите корень уравнения n+3/4=n+51/20
Ответ
3
n+3 n+51
----- = ------
4 20
5n+15 = n+51
5n-n=51-15
4n=36
n=9
----- = ------
4 20
5n+15 = n+51
5n-n=51-15
4n=36
n=9