Please Help!! 50pts!!

The labeled angles form a vertical pair, and angles belonging to a vertical pair are congruent. So
[tex]3x+50=6x-10\implies3x=60\implies x=20[/tex]
Answer:
35.5555555555
Step-by-step explanation:
(3x+50)+(6x - 10)=360
360 is all of the lines
commutative property:
(3x+6x)+(50+(-10))=320
9x+40=360
......-40|-40
9x=360
/9 | /9
35.5555555555