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Suma.a.trei.numere.conseutive.este.18.care.sunt.numerele

Răspuns :

a+a+1+a+2=18
3a=18-3=15
a=15:3
a=5
5+1=6
5+2=7
v:5+6+7=18

a+a+1+a+2=3a+3=18
3a=18-3=15
a=15:3=5
a+1=6
a+2=7