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suma a 5 nr consecutive este 35 aflati nr

Răspuns :

a + a + 1 + a + 2 + a + 3 + a + 4 = 35
5a = 35 - 10
5a = 25
a = 25 : 5
a = 5
a+a+1+a+2+a+3+a+4= 35
5a = 35-10
5a = 25
a = 25:5
a = 5