Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. The owner of a new restaurant is designing the floor plan, and he is deciding between two different seating arrangements. The first plan consists of 21 tables and 23 booths, which will seat a total of 155 people. The second plan consists of 21 tables and 19 booths, which will seat a total of 139 people. How many people can be seated at each type of table?
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