4t+8t+18=150 Ответ: t =  ?
4t + 8t + 18 = 150 12t + 18 = 150 12t = 150 - 18 12t = 132 t = 132 ; 12 t = 11
12t=132 t=132:12 t=11 _______ 4•11+8•11+18=150 150=150