Для начала упростим уравнения:
1) (x + 5/12) - 9/20 = 11/15x + 5/12 - 9/20 = 11/15x + 5/12 - 9/20 = 44/60x + 10/60 - 27/60 = 44/60x - 17/60 = 44/60x = 44/60 + 17/60x = 61/60
2) (x + 4/25) - 21/50 = 34/75x + 4/25 - 21/50 = 34/75x + 4/25 - 21/50 = 34/75x + 6/50 - 21/50 = 34/75x - 15/50 = 34/75x = 15/50 + 34/75x = 45/150 + 68/150x = 113/150
Ответ: x = 61/60 и x = 113/150.
Для начала упростим уравнения:
1) (x + 5/12) - 9/20 = 11/15
x + 5/12 - 9/20 = 11/15
x + 5/12 - 9/20 = 44/60
x + 10/60 - 27/60 = 44/60
x - 17/60 = 44/60
x = 44/60 + 17/60
x = 61/60
2) (x + 4/25) - 21/50 = 34/75
x + 4/25 - 21/50 = 34/75
x + 4/25 - 21/50 = 34/75
x + 6/50 - 21/50 = 34/75
x - 15/50 = 34/75
x = 15/50 + 34/75
x = 45/150 + 68/150
x = 113/150
Ответ: x = 61/60 и x = 113/150.