Respuesta:
[tex]x = 19[/tex]
Explicación paso a paso:
[tex]x + 2x = 57[/tex]
[tex]3x = 57[/tex]
Saludos ^^
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Verified answer
Respuesta:
[tex]x = 19[/tex]
Explicación paso a paso:
[tex]x + 2x = 57[/tex]
[tex]3x = 57[/tex]
[tex]x = 19[/tex]
Saludos ^^