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La ex 3 !! URGENT !! dau coroana

La Ex 3 URGENT Dau Coroana class=

Răspuns :

a + b = 7
a + c = 8
a + b + c = 12
7 + c = 12
c = 12 - 7
c = 5
a + c = 8
a + 5 = 8
a = 8 - 5
a = 3
a + b = 7
3 + b = 7
b = 7 - 3
b = 4
A+B+C=12 A+B=7 A+C=8 Rezolvare: 12-7=5(C) 12-8=4(B) 12-(5+4)=12-9=3(A)