t + 1 = 4/9 + 2/9
t + 1 = 6/9
t + 1 = 2/3
t = 2/3 - 1
t = 2/3 - 3/3
t = (2 - 3)/3
t = -1/3
Ответ: t = -1/3
t + 1 = 4/9 + 2/9
t + 1 = 6/9
t + 1 = 2/3
t = 2/3 - 1
t = 2/3 - 3/3
t = (2 - 3)/3
t = -1/3
Ответ: t = -1/3