X : el numero buscado
....................................
X - 20 = 7
X = 7 + 20
X = 27 >>>Respuesta
......................................
eso es todo xD
SALUDOS!!
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X : el numero buscado
....................................
X - 20 = 7
X = 7 + 20
X = 27 >>>Respuesta
......................................
eso es todo xD
SALUDOS!!