Hola
un número disminuido en 20 equivale a 54=
x-20=54
x=54 +20
x=74
comprobamos:
74 -20=54
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Hola
un número disminuido en 20 equivale a 54=
x-20=54
x=54 +20
x=74
comprobamos:
74 -20=54