Question

1/Дано:4
2/Решите систему неравенств

Answer 1

$1)6<y<8\\\\8*(-\frac{1}{2})<-\frac{1}{2}y<6*(-\frac{1}{2})\\\\-4<-\frac{1}{2}y<-3\\\\\\4<x<10\\-4<-\frac{1}{2}y<-3\\--------\\0<x-\frac{1}{2}y<7\\\\2)\left \{ {{6x-5<13} \atop {28+4x>20}} \right. \\\\\left \{ {{6x<18} \atop {4x>-8}} \right.\\\\\left \{ {{x<3} \atop {x>-2}} \right.\\\\Otvet:\boxed{x\in(-2;3)}$