Answer:
x = 101 degrees
Explanations:
The given diagram is a parallelogram. The opposite angle of the parallelogram is congruent. Hence;

Equate
x + 4 = 2x - 97
x - 2x = -97 - 4
-x = -97 - 4
-x = -101
x = 101
Hence the value of x that makes ABCD a parallelogram is 101 degrees