Răspuns :
daca 3-6y>0
I3-6yI=3-6y
3-6y=12
6y=-9
y=-3/2
daca 3-6y<0
I3-6yI=-(3-6y)
-3+6y =12
6y=9
y=3/2
I3-6yI=3-6y
3-6y=12
6y=-9
y=-3/2
daca 3-6y<0
I3-6yI=-(3-6y)
-3+6y =12
6y=9
y=3/2