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  • 13-05-2020
  • Mathematics
contestada

Does anyone know this?

Does anyone know this class=

Respuesta :

khalil2012am
khalil2012am khalil2012am
  • 13-05-2020

Answer:

x = 8°

Step-by-step explanation:

(7 x + 1) + (3 x +9) = 90

10 x + 10 = 90

10 x = 80

x = 8°

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