Question

даю 50 баллов срочно​

Answer 1

Ответ:

$12<6-\dfrac{3x}{4}<18\ \ \Big|-6\\\\\\12-6<-\dfrac{3x}{4}<18-6\\\\\\6<-\dfrac{3x}{4}<12\ \ \Big|\cdot (-1)\\\\\\-12<\dfrac{3x}{4}<-6\ \ \Big|\cdot 4\\\\\\-48<3x<-24\ \ \Big|:3\\\\\\-\dfrac{48}{3}<x<-\dfrac{24}{3}\\\\\\-16<x<-8\ \ \ \Rightarrow \ \ \ \ x\in (-16\ ;-8\ )$