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Dato:
a + b = 14
b = 14 - a
3a - 2b = 2
3a - 2(14 - a) = 2
3a - 28 + 2a = 2
5a = 30
a = 6
b = 14 - a
b = 14 - 6
b = 8
El numero es ab = 68