-1.8/2,7x-13.5<0<br> -1.9/6.3-3x > 0 -3/1.6x-9.6> 0
1)-1.8/2,7x-13.5<0<br>-1.8/2,7x<13.5<br>-1.8х<36.45<br>х<-20,25<br>2)-1.9/6.3-3x > 0 -1.9/6.3>3х -1.9>18.9х х>0,1 3)-3/1.6x-9.6> 0 -3/1.6x>9.6 -3х>15.36 х<-5.12