Answer:
x = 59
Explanation:
angle 115 and angle 56 + x are alternate angles and congruent, thus
56 + x = 115 ( subtract 56 from both sides )
x = 59°
The angle marked 115° and the angle that is the sum of angles x and 56° are alternate interior angles, so have the same measure:
115° = x +56°
59° = x . . . . . . . subtract 56°
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