Question

If an angle is 60 degrees less than two times of its supplement(180) then the greater angle is? (Grade 7 and please show the methods)

Answer 1

let the angle be x
Then ,
supplement of angle x will be 180°-x
x = 2(180°- x ) -60°
=> x = 360° -2x -60°
=> 3x = 300°
=> x = 100°

Answer 2

100° is write answer