Question

|x+3|=1 va rog frumos

Answer 1

|x+3|=1
|x+3|=x+3,x>0 sau -x-3,x<0
pt x>0 x=1-3=-2
pt x<0 -x=1+3   x=-4 

Answer 2

lx+3l=1 ⇔ x+3=1 ; x+3=-1

x+3=1
x=1-3
x=-2

x+3=-1
x=-1-3
x=-4

x∈{-4, -2}