Half of All Plus One-half

Algebra Level pending

A bread seller is selling some loaves of bread. When he meets the first customer, he orders:

"I want half of all bread plus one-half."

After selling the bread in that amount, here comes another buyer who orders:

"I want half of all bread plus one-half."

Afterwards, there comes the last buyer who orders:

"I want half of all bread plus one-half."

At last, all bread is sold out.

How many loaves of bread are there in the beginning?

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