Question

From the given figure ind the value of "x".​

Answer 1

Answer:

2x+40+5x=180 ( linear pair )

7x+40=180

7x=180-40

7x=140

x=140/7

x=20

Answer 2

Answer:

2x+5x+40°=180°

=7x+40°=180°

=7x=180°-40°

=7x=140°

=x=140/7

=x=20°