(t+0,1)⋅1,5=17,004...................

(t+0.1)-1.5=17.004
(t+0.1)=17.004+1.5
t+0.1=18.504
t=18.504-0.1=18.404
Проверка
(18,404+0,1)-1,5=17,004
18,504-1,5=17,004
17,004=17,004
Верно