Answer:
12°
Explanation:
a straight line adds up to 180°
(3x+20)+2x=180
3x+2x+20=180
5x+20=180
5x=180-20
5x=60
5x/5=60/5
x=12
x=12°
x=32°
2x+3x+20=180 co interior angle
x=160/5=32°
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