si al disminuir 5 unidades a la mitad de un numero, se obtiene 2/9 del mismo numero aumentado en 5; hallar dicho numero.
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1/2x-5=2/9+5 1/2-5=47/9 1/2x=47/9+5 1/2X=92/9 X=92/9:1/2 X=184/9