Answer:
x=80 and y=65
Step-by-step explanation:
Let one angle be x and the other be y
x+y=145 (1)
x-y=15 (2)
Adding both eqs
x+y+x-y=145+15
2x=160
x=160/2
x=80
Putting value of x in 1
80+y=145
y=145-80
y=65
Now
x+y+z=180 where z=35
80+65+35=180
180=180