Answer:
4
Explanation:
If u is parallel to v, so:
(24x - 1) + (20x +5) = 180
24x - 1 + 20x + 5 = 180
24x + 20x - 1 + 5 =180
44x - 1 + 5 = 180
44x + 4 = 180
44x = 180 - 4
44x = 176
44x / 44 = 176 / 44
6.5m questions
8.5m answers