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Suma a trei numere consecutive este 54Aflati numerele . Indicatie!!!!!!

Răspuns :


I.x

II.x+1

III.x+2

x+x+1+x+2=54

3x+3=54

3x=54-3=51

x=51/3=17

I.x=17

II.x+1=17+1=18

III.x+2=17+2=19

Fie n, n+1 si n+2-cele 3 numere consecutive
n+n+1+n+2=54
3n+3=54
3n=54-3
3n=51
n=51:3
n=17
Numerele sunt:17 , 18 si 19.
Verificare: 17+18+19=54