Question: The follow message has been encrypted using an Affine Cipher and a 2 9 - letter alphabet. It is known to begin with the word

The follow message has been encrypted using an Affine Cipher and a 29-letter alphabet. It is known to begin with the word DEAR. Find the key and decrypt the message.
Enter one character per box.
ciphertext: OVWZB_WKNW_IBNUPBBOWYV

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