Can u help me? Well will u help me?
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Hello from MrBillDoesMath
Answer: 12
Discussion
Let the number of aerobic classes be "n".
Then
"membership" "aerobic" class
12 + 3n = 4n
Subtract 3n from each side:
12 + (3n - 3n) = 4n - 3n =n =>
12 = n
Thank you,
Mr. B