479,045 views
42 votes
42 votes
Ayúdame, es para mañana

Ayúdame, es para mañana-example-1
User PeterVermont
by
2.6k points

1 Answer

14 votes
14 votes

Answer: 1) x=20° 2) x=50°

Explanation:

1)


x+20+x+30=90\\2x+50=90\\2x+50-50=90-0\\2x=40\\Divide\ both\ parts\ of \ the\ equation\ by\ 2:\\x=20^0

2)

The sum of adjacent angles is always 180 degrees.


x+80+x=180\\2x+80=180\\2x+80-80=180-80\\2x=100\\Divide\ both \ parts\ of\ the\ equation\ by\ 2:\\x=50^0

User BrianLang
by
2.4k points