3 years ago

Suma a doua numere este 500 iar diferenta lor este 100. aflati numerele

1 answer:

5 0

Notăm cu a,b numerele
a+b=500
a-b=100⇒a=100+b
100+b+b=500
100+2b=500
2b=400
b=200
a=200+100⇒a=300
Numerele sunt 200 şi 300

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