Question

Plz help and fast thank u.

Answer 1

X = 12

Explanation:

This is quite simple!

Those two angles MUST add up to 180° since it is a straight angle.

Therefore, you can set them equal to 180°

54° + 10x + 6° = 180°

60° + 10x = 180°

-60° -60°

10x = 120°

10x/10 = 120/10

X = 12

Hope this helps! :)