Answer:
35°
Explanation:
The relevant rule is that the exterior angle (95°) is the sum of the remote interior angles (60° and x°). This lets us find x° as ...
x° = 95° -60° = 35°
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Additional comment
The interior angle opposite x° is a "vertical angle" with respect to x°, hence is congruent.
The rule used here derives from the fact that the remote angle sum and the exterior angle are both supplementary to the lower right interior angle. Angles supplementary to the same angle are the same (which is also why vertical angles are congruent).