Respuesta :

Good evening ,

______

Answer:

The right answer is : B)

___________________

Step-by-step explanation:

(5x+20)+(x+40)=180 ⇔ 6x + 60 =180 ⇔ 6x=120 ⇔ x=20

Then 5x+20 = 5(20)+20 = 120

x+40 = 20+40 = 60.

……In conclusion……

5x+20 = 120°

x+40 = 60°.

:)

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