2 rectangular tables are put together short ends together. 10 people can be seated around the tables. Add 2 tables again short ends together. How many people can be seated around the tables? Is there an equation you can use?

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To solve this problem, we need to understand the arrangement of the tables and how the seating capacity changes when tables are added.

Let's start with the initial scenario: two rectangular tables placed together, short ends touching. In this configuration, 10 people can be seated around the tables.

Now, when two more tables are added, short ends touching again, the question asks for the new seating capacity. To find the answer, we need to determine how the seating capacity changes when two tables are added.

Let's analyze the pattern:
- Each table contributes seating capacity for two people
- The short ends of the tables touching means that one side will have seating capacity for two people, while the opposite side will only have capacity for one person

Therefore, when two more tables are added, we can deduce that the new seating capacity will increase by four people (2 people per table x 2 tables).

So, if the initial seating capacity is 10 people, adding two more tables would increase the seating capacity to 10 + 4 = 14 people.

In summary, the equation we can use is:
New Seating Capacity = Initial Seating Capacity + (2 people per table x Number of tables added)

In this case, the answer is:
New Seating Capacity = 10 + (2 x 2) = 14 people.