Answer:
The angle measures are
x + (x + 30) + 2x = 180
x = 37.5
Explanation:
x + (x + 30) + 2x = 180. (combine x and 2x)
3x + (x + 30) = 180. (combine 3x and x, 30 cant combine)
4x + 30 = 180. (subtract 30 from both)
4x = 150. (divide both sides by 4)
x = 37.5