Question

Resolva a seguinte funcao modular
|3x+2|=2

Answer 1

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

ou

-(3x+2)=2
-3x-2=2
-3x=2+2
-3x=4
x=4/-3
x=-4/3

S={-4/3,0}