4) {¹/₂ x +1< 1 ¹/₂ x
{3(x+2)<6(x+1)<br>
¹/₂ x +1<1 ¹/₂ x<br>¹/₂ x - 1 ¹/₂ x < -1
-x<-1<br> x>1
3(x+2)<6(x+1)<br>3x+6<6x+6<br>3x-6x<6-6<br>-3x<0<br> x>0
{x>1
{x>0
x>1
Ответ: х>1.
11) {2(3x+2)<5(x-1)<br> {¹/₃ (x+2)>-10
2(3x+2)<5(x-1)<br>6x+4<5x-5<br>6x-5x<-5-4<br>x<-9<br>
¹/₃ (x+2)>-10
x+2>-30
x>-30-2
x>-32
{x<-9<br>{x>-32
-32Ответ: -32