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Aflati doua numere consecutive stiind ca suma lor este 113!

Răspuns :

a+a+1=113
2a+1=113
2a=113-1
2a=112
a=112:2
a=56
b=56+1
b=57

a+b=113
b=a+1

a+a+1=113
2a=113-1
2a=112
a=56

b=56+1
b=57

Succes!