Answer:
x = -18
Step-by-step explanation:
The angles are vertical angles, so they are equal
2x+156 =4x+192
Subtract 2x from each side
2x-2x+156 =4x-2x+192
156 = 2x+192
Subtract 192 from each side
156-192 = 2x
-36 = 2x
Divide each side by 2
-36/2 = 2x/2
-18 = x
