Respuesta :

pokketepsu

Answer:

d. 40

Step-by-step explanation:

2x + x +( x + 20) have to all equal 180 degrees in a triangle.

2x + x + x + 20 = 180

2x + 2x + 20 = 180

4x + 20 = 180

4x = 180 - 20

x = (180-20) / 4

x = 160 / 4

x = 40

QueenNerdy889

Answer:

D. 40

Step-by-step explanation:

This is the answer that was right for me, I just did this question :) Hope this helps! :D

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