-3х-2х>15-5
-5х>10
х<-2
7х-4х<-3
3х<-3
х<-1
9*3/2+9*3+4
27/2+27+4
13,5+31
44,5
x + 191\20 = 45\2 - 127\12
x + 191\20 = 143\12
x = 143\12 - 191\20
x = - 49\60