х + 2/13 = 3/26 + 5/13
(26х)/26 + 4/26 = 3/26 + 10/26
26х + 4 = 3 + 10
26х = 13 - 4
26х = 9
х = 9/26
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Проверка: 9/26 + 4/26 = 3/26 + 10/26
13/26 = 13/26
Пошаговое объяснение:
х = 3/26 + 5/13 - 2/13
х = 3/26 + 10/26 - 4/26
х = 9/26
