Resposta :
3-x<x+2
-x-x < 2 -3
- 2x < - 1(-1)
2x > 1
x > 1/2
x+2<-x+5
x + x < 5 - 2
2x < 3
x < 3/2
{ 1 }
-x-x < 2 -3
- 2x < - 1(-1)
2x > 1
x > 1/2
x+2<-x+5
x + x < 5 - 2
2x < 3
x < 3/2
{ 1 }