Question: An encryption function is provided by an affine cipher f:X - > X , ( x ) = ( 1 7 x - 2 )

An encryption function is provided by an affine cipher
f:X -> X,(x)=(17x-2) mod 26, X={1,2,........,26}
Find the decryption key for the above affine cipher. Encrypt the message with the code 7 and 14.

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