There are 75 students. 20% of the students are in a club. How many students are in a club?
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To solve for C, you have to get both of the numbers with a C on the same side. So, subtract the 5c from the right side onto the left side.
Then, divide by 3 on each side.
So, c = 7.
Then, divide by 3 on each side.
So, c = 7.