Răspuns:
a + b + c = 708
a + b = 476
b + c = 555
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a, b, c, = ?
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476 + c = 708
c = 708 - 476
c = 232
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b + 232 = 555
b = 555 - 232
b = 323
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a + 323 = 476
a = 476 - 323
a = 153
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Răspuns : a = 153, b = 323, c = 232
Verificare : 153 + 323 + 232 = 708