(4/9 + x) - 1/9 = 7/9
Упростим:
4/9 + x - 1/9 = 7/9
4/9 - 1/9 + x = 7/9
3/9 + x = 7/9
x = 7/9 - 3/9
x = 4/9
Ответ: x = 4/9.
(4/9 + x) - 1/9 = 7/9
Упростим:
4/9 + x - 1/9 = 7/9
4/9 - 1/9 + x = 7/9
3/9 + x = 7/9
x = 7/9 - 3/9
x = 4/9
Ответ: x = 4/9.