HELP ME PLEASE WILL MARK BRAINLIEST PLEASE ANSWER QUICK SEE ATTACHMENT
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Answer: x = 5
Step-by-step explanation: In order for a parallelogram to be square, the measures of the diagonals have to be equal.
when x = 5, 4x + 17 = 12x - 23
4(5) + 17 = 37
12(5) - 23 = 37