1)2(3x+1)-x<=3(x+4)
2)7x+4(x-2)>6(1+3x)
3)2(x-1)-3(x+2)<6(1+x)

1) 2(3х+1)-х<=3(х+4);  6х+2-х<=3х+12;  6х-х-3х<=12-2;  2х<=10; х<=5;   2)7х+4(х-2)>6(1+3х);  7х+4х-8>6+18х; 7х+4х-18х>6+8; -7х>14; х<-2;    3) 2(х-1)-3(х+2)<6(1+х); 2х-2-3х-6<6+6х; 2х-3х-6х<6+2+6; -7х<14; х>-2.