Question: 6. A message was encrypted using a simple encryption method with the encryption function (key) f(p)-9p+13) mod 26. The following encrypted message was obtained HNRTRNKC

6. A message was encrypted using a simple encryption method with

6. A message was encrypted using a simple encryption method with the encryption function (key) f(p)-9p+13) mod 26. The following encrypted message was obtained HNRTRNKC Invert the encryption function (key) and decrypt the message. Show your work explicitly

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