If the average of a, b, and 7 is 13; what is the average of a + 3, b - 5, and 6?

Answer 1

a + b + 7 = 13 * 3 ... a + b = 32

a + 3 + b - 5 + 6 = a + b + 4 = 36
... 36 / 3 = 12

Answer 2

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