Sarah is planning her workout schedule for the month. She wants to spend a total of 20 hours working out, with an equal amount of time for yoga, running, and strength training each week. However, she also wants to spend an additional 2 hours each week on swimming. If there are 4 weeks in the month, how many hours will she spend on each activity per week, and what is the total number of hours she will work out each week? Let's think step by step and output the final answer within \boxed{}.
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