Question 497510
let angle be x 
complement = (90-x)
4 times = 4 (90-x)
20 more
x= 4(90-x)+20
x=360-4x+20
5x=380
x=76

m(A) = 3x+50
supplement = 180-(3x+50)
=180-3x-50
=130-3x
...
CHECK

 add them up you get 180 deg