Respuesta :

olumideolawoyin

Answer:

x = 5

Step-by-step explanation:

76 + 90 + 95 + 18x + 9 = 360° Sum of angles in a quadrilateral

270 + 18x = 360

18x = 360 - 270

18x = 90 Divide both sides by 18

x = 5

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