Respuesta :

Hrishii

Answer:

17

Step-by-step explanation:

(7x)° + 61° = 180° (interior angle Postulate)

(7x)° = 180° - 61°

(7x)° =119°

7x = 119

[tex]x = \frac{119}{7} \\ \\ \huge \red{ \boxed{x = 17}}[/tex]