Question

The angle is 18 more than its supplement. Find the angle.​

Answer 1

81 , 99

Explanation:

Let the supplement angle = x

The required angle = x+ 18

x + 18 + x = 180 {Supplementary}

2x + 18 = 180

Subtract 18 form both sides

2x = 180- 18

2x = 162

Divide both sides by 2

x = 162/2

x = 81

x + 18 = 81 + 18 = 99