Respuesta :

sokeyoke
The adjacent angles should add up to 180°
Attached is a picture of my work and steps
Ver imagen sokeyoke
abscisa15
We have supplementary angles.

I) 2(x+25) +2x-30=180 ⇒ 2x+50+2x-30=180 ⇒ 4x = 160 ⇒ x = 40°

II) 13w+4w+10=180 ⇒ 13w + 4w = 180 - 10⇒ 17w = 170  ⇒ w = 10°