If the mean of observations 14, 5, 4, 8, 2, 3, x is x, then find the value of x

The mean of observations 2, 3, 4, 5, 8, 14, and x is x. Find x.

if the mean of five observations x, x+2,x+4,x+6,x+8 is 13 , find the value of x and hence find the mean of the last three observations.

The mean of 5 observation 3, 5, 6, x and 11 is 7, find the value of x.

If x=-3/8 then find the value of 5-(-x)

If the mean of 5 observiation x , x+2, x+4 x+6, and x + 8 is 11 , find the value of x ,

If the mean of 2,3, x ,7 ,8 is x, then find the value of x .

X :8::2:5 find the value of x