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as vrea va rog rezolvarea la ex 10. repede

As Vrea Va Rog Rezolvarea La Ex 10 Repede class=

Răspuns :

a + b + c = 68
a = b - 5      =>   b = a + 5
a = 3c
b = 3c + 5
3c + 3c + 5 + c = 68
7c = 68 - 5
c = 63 : 7
c = 9
a = 3 * 9
a = 27
b = 3 * 9 + 5
b = 32