The two given angles are vertical angles which mean they are the same:
9x + 72 = 4x + 112
Subtract 72 from bot sides:
9x = 4x + 40
Subtract 4x from both sides:
5x = 40
Divide both sides by 5:
X = 8
Answer:
3. 2 and 10
Step-by-step explanation:
let me know if im wrong
Exactly 8
To solve, either use long division or calculator