Question

Given the set: `{5,3,6,-1,x,3,-5,12}`, for what x would the mean of the set be 0?

Answer 1

The sum of the set must be zero.

Explanation:

If the mean is zero, then the sum of the set must also be equal to zero.

`5+3+6-1+x+3-5+12=0`

`23+x=0`

`x=-23`

hope that helped