Respuesta:
63
Explicación paso a paso:
63 = 9 x 7
63 / x = 9 / 5
x * 9 = 63 * 5
x = 9 * 7 * 5 / 9
= 7 * 9
x = 63
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Respuesta:
63
Explicación paso a paso:
63 = 9 x 7
63 / x = 9 / 5
x * 9 = 63 * 5
x = 9 * 7 * 5 / 9
= 7 * 9
x = 63