Question

Enter the number that belong n the green box.
Please help me , I would really appreciate it!

Answer 1

Explanation:

(2x + y) + (3x - y) = 180° {straight line}

2x + y +3x - y = 180

2x + 3x + y -y =180

5x +0 = 180

5x = 180

x = 180/5

x = 36

5y = 3x - y {Vertically opposite angles are equal}

5y = 3*36 - y

5y = 108 - y

5y + y =108

6y = 108

y =108/6

y = 18