Cherries Come in Twos

Susie took cherries out of a bowl by following a certain pattern. How many cherries had there been in the bowl to start with if she was left with 14 single ones?
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Susie had a large bowl of cherries.

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Cherries Come in Twos

They were all in pairs.

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Cherries Come in Twos

Susie took out a pair, she ate one cherry and put the other one back. She took out another pair and did the same again.

Then she helped herself to one of the single cherries in the bowl.

Susie continued helping herself to the cherries in this way (pair, pair, single - pair, pair, single - ...)

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Cherries Come in Twos

After she had done this lots of times, there were just $14$ single cherries left.

How many cherries had there been in the bowl to start with?