HELP! WILL GIVE BRANLIEST

Answer:
X=11
Z=73
Step-by-step explanation:
So vertical angles are equal so to find X
107=12x-25
Solve the equation
x=11
4 angles are 360 degrees, we know 2 angles.
107+107= 214
360-214= 146
146 is the two angles added up, divide them by 2 to find each side
146/2= 73
Z=73