200 - (48 / t) * 45 = 20
(48 / t ) * 45 = 200 - 20
(48 / t) * 45 = 180
48/ t = 180 / 45
48 / t = 4
t= 48/4
t = 12
ответ. t=12
200 - (48 / t) * 45 = 20
(48 / t ) * 45 = 200 - 20
(48 / t) * 45 = 180
48/ t = 180 / 45
48 / t = 4
t= 48/4
t = 12
ответ. t=12