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suma a doua nr este857 iar diferenta lor 343 aflati nr


Răspuns :

a+b=857
a-b=343=>a=b+343
inlocuim:
b+343+b=857
2b=857-343
2b=514
b=514:2
b=257
a=257+343
a=600
Verificare:
600-257=343
Sper ca te-am ajutat!!

a+b=857
a-b=343
a=b+343
b+343+b=857
bx2+343=857
bx2=857-343
bx2=514
b=514:2
b=257
a=257+343
a=600
proba:600+257=857
          600-257=343