Question 589609
let one angle be x deg
second angle = x+50 deg
Third angle = 2x-10

sum of all angles of triangle = 180 deg

x+x+50+2x-10=180

4x+40=180

4x=180-40
4x= 140

/4
x=35 

Plug x in the angles

first angle 35
second = 85
third = 60