Verified answer

2x+3=0 ==>x=-3/2

------(-3/2)+++++++

Se x<-3/2

-(3x-1)=-(2x+3)

3x-1=2x+3

x=4

Se -3/2 =<x<1/3

-(3x-1)=2x+3

-3x+1=2x+3

5x=-2

x=-2/5

Se x>=1/3

3x-1=2x+3

x=4

Resp:{-2/5,4}

Ola Joao

3x - 1 = 2x + 3

x = 4

3x - 1 = -2x - 3

5x = -2

x = -2/5

pronto