Respuesta :

Answer:

x = 25°

Step-by-step explanation:

It's right triangle

So 2x + x + 15 = 90°

3x + 15 = 90°

3x = 75

x = 25°

[tex]x + 15 + 2x = 90 \\ 3x = 75 \\ x = 25[/tex]