Question

Решите уравнение
{2y-(y-4)<6
{y>3(2y-1)+18

Answer 1

Ответ:

$\left \{ {{2y-(y-4)<6} \atop {y>3(2y-1)+18}} \right. \\\\\left \{ {{2y-y+4<6} \atop {y>6y-3+18}} \right. \\\\\left \{ {{y<6-4} \atop {y-6y>15}} \right. \\\\\left \{ {{y<2} \atop {-5y<15}} \right. \\\\\left \{ {{y<2} \atop {y<-3}} \right.$

Таким образом:

у ∈ (-∞ ; -3)

Пошаговое объяснение: