Answer:
z + 80° = 180°
z = 180° - 80° = 100°
(7x + 24)° + z° = 180°
(7x + 24)° + 100° = 180°
7x + 24° = 180° - 100°
7x + 24° = 80°
7x = 80° - 24° = 56°
x = 56°/7 = 8°
X will be 8 and z will be 100
