13-6(x+1)<3-10x
7-6x<3-10x
x+1<0
x<-1
Отв.: -1
13-6x(x+1)<3-10x
13-6x-6<3-10x
-6x+10x<3+6-13
4x<-4
x<-4:4=-1
ответ. x<-1
13-6(x+1)<3-10x
7-6x<3-10x
x+1<0
x<-1
Отв.: -1
13-6x(x+1)<3-10x
13-6x-6<3-10x
-6x+10x<3+6-13
4x<-4
x<-4:4=-1
ответ. x<-1