Plz, help me with this question!

Answer:
O A. 8
Step-by-step explanation:
the line is 180, so subtract 140 to get 5x. 5x = 40 so divide by 5
180 - 140 = 5x
40 = 5x
/5 /5
8 = x
Answer: X=8
Step-by-step explanation:
it is a 180 degree angle total.
180=5x+140
subtract 140 from both sides
40=5x
divide by 5 on both sides
8=x