Respuesta :
Answer:
x=9
Step-by-step explanation:
these are vertical angles, so they equal eachother!
12x-3=105
move three to the other side of the equals sign
12x=108
divide both sides by 108
x=9
Answer: x=9
Step-by-step explanation:
These angles are equal, so you can set 105 equal to 12x-3. Add 3 and divide by 12 to get x=9.