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Va roggg exercitiul 18. ​

Va Roggg Exercitiul 18 class=

Răspuns :

Salut,

a+b/2=32

b+c/2=39

a+c/2=41

a+b=32×2

a+b=64

b=64-c

b+c=39×2

b+c=78

a+c=41×2

a+c=82

c=82-a

64-a+82-a=78

64+82-78=2a

2a=68

a=68:2

a=34

a+b=64

34+b=64

b=64-34

b=30

a+c=82

34+c=82

c=82-34

c=48

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