Respuesta :

Answer:

4

Step-by-step 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

x = 4