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afla nr necunoscut
c-12-38=24

a+12+8=51

12+19=50-c


d-7-38=13

13+c+17=80

37-a=84-69


e-21-59=14

36+8+d=74

b-9=7+18


f-25-18= 7

26+15+e=90

15+d=73-15


Răspuns :

12+19=50-c

31=50-c

c=50-31

c=29

d-7-38=13

d-7=38+13

d-7= 51

13+c+17=80

13+c=80-17

13-c=63

c=63-13

c=50

37-a=84-69

37-a=15

a=37-15

a=22

e-21-59=14

e-21=59+14

e-21=73

e=73+21

e= 94

36+8+d=74

44+d=74

d=74-44

d=30

b-9=7+18

b-9=25

b=25+9

b=34

f-25-18=7

f-7=7

f=7+7

f=14

26+15+e=90

41+e=90

e=90-41

e=49

15+d=73-15

15+d=58

d=58-15

d=43

sper ca te-am ajutat! :^

Vezi imaginea LOoserZzZeroGirl
c=24+12+38
C=36+38
C=74


A=51-(12+19)
A=51-31
A=20


12+19=50-c
31=50-c
50-c=30
C=20


D=7+38+13
D=58


30+c=80
C=80-50
C=30


37-a=14
A=37-14
A=23


e=21+59+14
e=94


44+d=74
d=74-44
d=30


b=9+(7+18)
b=9+25
d=34



f=25+18+7
f=50



41+e=90
e=90-41
e=49



15+d=58
d=58-15
d=43