Respuesta:
63
Explicación paso a paso:
[tex]\frac{6}{21} = \frac{18}{x} \\ \\ 6x = 378\\ x = 63[/tex]
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Respuesta:
63
Explicación paso a paso:
[tex]\frac{6}{21} = \frac{18}{x} \\ \\ 6x = 378\\ x = 63[/tex]