Question

please solve it by linear equation in two variables

Answer 1

let the 1st angles be x and the 2nd angle be y and x<y

As we know, angle sum property

1st angle + 2nd angle + 3rd angle=180

x+y+3rd angle=180

3rd angle= 180-x-y

therefore, acc. to the ques. :-

x+y=180-x-y

x+x+y+y=180

2x+2y=180...(i)

y-x=50 ....(ii)

now you can solve these equations by any of the methods

hope this answer helped you... :)