Question

Помогите решить уравнение 5 11/14x - 8/15 = 5/21  
Срочно заранее спасибо люблю*)

Answer 1

5 11/14х - 8/15 = 5/21
5 11/14х = 5/21 + 8/15
5 11/14х = 25/105 + 56/105
5 11/14х = 81/105
х = 81/105 : 5 11/14
х = 81/105 : 81/14
х = 81/105 * 14/81
х = 14/105
х = 2/15

Answer 2

сук.....................