Datele problemei
a + b = 365
b + c = 607
a + c = 538
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→ le adunam
(a + b) + ( b + c ) + ( a + c ) = 365 + 607 + 538
2 x a + 2 x b + 2 x c = 1 510
2 x ( a + b + c ) = 1 510
a + b + c = 1 510 : 2
a + b + c = 755 → suma celor trei numere
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755 - 607 = 148 → primul numar (a)
365 - 148 = 217 → al doilea numar (b)
607 - 217 = 390 → al treilea numar (c)
Verific: 148 + 217 + 390 = 755 → suma celor trei numere
148 + 217 = 365 ⇔ a + b
217 + 390 = 607 ⇔ b + c
148 + 390 = 538 ⇔ a + c
