Question

решите неравенство -1.8/2.7х-13.5<0 4/2х-9>0 -1.9/6.3-3x>0 9/2x-7<0 -3/1.6x-9.6>0

Answer 1

-9/5/27/10*x-27<2x-9
-2/3x-27/2<2x-9
-4x-81<12x-54
-4x-12x<-54+81
X>-27/16

-19/10/63/10-3x>0-7
-19/63-3x>-7
-19-189x>-441
-189x>-441+19
189x>-422
X<422/189

-3/1.6x-9.6>0
-1,875x-9,6>0
-1,875x>9,6
X<-5,12