1. а) 5х<15 x<3 б)6x+14-8x-24<=0 2x>=-10 x>=-5 в) x/7-6>=0 x>=42
№2 3x-12-4x-12<=0 x>=-24
3x+6x-4>5 x>1
x>1
№3
-2<(x+1)/3<=7
-6<x+1<=21
-7<x<=20
№4
4+y>=0 y>=-4
15-5y>0 5y<15 y<3
[-4;3)
1. а) 5х<15 x<3 б)6x+14-8x-24<=0 2x>=-10 x>=-5 в) x/7-6>=0 x>=42
№2 3x-12-4x-12<=0 x>=-24
3x+6x-4>5 x>1
x>1
№3
-2<(x+1)/3<=7
-6<x+1<=21
-7<x<=20
№4
4+y>=0 y>=-4
15-5y>0 5y<15 y<3
[-4;3)