9514 1404 393
Answer:
x = 4
Explanation:
The two marked angles are supplementary when the lines are parallel.
(20x +5)° +(24x -1)° = 180°
44x +4 = 180 . . . . . . simplify
44x = 176 . . . . . . . . . subtract 4
x = 4 . . . . . . . divide by 44
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The two angles are ...
(20·4 +5)° = 85°
(24·4 -1)° = 95°