Answer:
4
Step-by-step explanation:
In a parallelogram, adjacent angles are supplementary
125 + 14x-1 = 180
14x - 1 = 180 - 125
14x - 1 = 55
14x = 55 + 1
14x = 56
x = 56/14
x = 4
Therefore, the value of x = 4
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