Respuesta :

TaiDn
If the angles are supplementary, and they add up to 180, the answer is:

2x + 3x + 15 = 180

5x + 15 = 180

5x = 165

x = 33

If the angles are complementary, the answer is:

2x + 3x + 15 = 90

5x + 15 = 90

5x = 75

x = 15