Respuesta :

Anisatunizzati

Answer:

x = 30

Step-by-step explanation:

[tex] \frac{26}{26 + 13} = \frac{20}{x} \\ \frac{26}{39} = \frac{20}{x} \\ 26x = 20(39) \\ 26x = 780 \\ x = \frac{780}{26} \\ x = 30[/tex]

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