Respuesta :

echasteen05

Answer:

2x=80°

2x+20=100°

Step-by-step explanation:

2x+20+2x=180

4x+20=180

-20 -20

4x=160

4x/4=160/4

x=40

2x=80

2x+20=100

hopefully this helps :)

Answer:

x=40°

Step-by-step explanation:

2x+20°+2x=180°

4x+20=180°

4x=160°

x=40°