Please help or i am grounded

Answer:
[tex]x=140[/tex]
Step-by-step explanation:
Do not get grounded.
An angle at a point is 360°.
So, [tex]x+120+70+30=360[/tex]
[tex]x+220=360[/tex]
[tex]x=140[/tex]
Remember this All the angles around a point when added gives a 360° !
Thus,
30+ X +70+120 = 360
=> X + 220 = 360