Mean = 8+6+5+7+4/5 = 30/5 = 6
Median = 6
Both the mean and median are 6
x - 2 + x + 4 + x - 2 + 4 - 4 = x + 3 + x + 4 + x + 5
4x + 4 = 3x + 12
4x - 3x = 12 - 4
x = 8
The first blank is 3
the second blank is 5
therefore the same things cannot add up to 2 and 8 at the same time