la |x| : 5, 14, 9, 5, 9, 3, 0
-x: -5, 14, 9, -5, -9, 3 , 0
12. a)2+5+4-8=3
b)9+4-3-3=7
c)6+4+5-1+2=16
d)4-2+2-4=0
Răspuns:
|x|
5
14
9
3
0
-x
-5
-(-14)=14
-(-9)=9
-(+9)=-9
-(-3)=3
succes
