|x|=2
S={-2; 2}
|y|=-√3
S=∅ (un modul nu poate fi negativ)
|x-2|=3
x-2=-3 x-2=3
x=-1 x=5
S={-1; 5}
|2x+1|=0
2x+1=0
2x=-1
x=-1/2
S={-1/2}
|x-0,2|=3
x-0,2=-3 x-0,2=3
x=-2,8 x=3,2
S={-2,8; 3,2}
|4-x|=12,3
4-x=-12,3 4-x=12,3
x=16,3 x=-8,3
S={-8,3; 16,3}
|2x+√7|=-5 S=∅
|2x|+√7=-5 S=∅ (nu ai inchis modulul, dar oricum nu are solutii)
