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su mitad es 3 + 2 que es su trercera parte y mas 25 es 30
Condicion
(X/2) + (X/3) + 25 = 30; (X/2) + (X/3) = 30 - 25
(X/2) + (X/3) = 5 ;
3X + 2X = 6x5
5X = 30
X = (30/5) = 6 ===> X = 6
Prueba:
(6/2) + (6/3) + 25 = 30
3 + 2 + 25 = 30
El numero es 6