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Suma a 3 numere consecutive e 45.Afla numerele stiind ca suma primelor doua e 29?

Răspuns :

x+x+1+x+2=45
x+x+1=29
2x+1=29
2x=29-1
2x=28
x=14
14+14+1+x+2=45
31+x=45
x=45-31
x=14