Help me please?

Question

If the mean of x and y is 32 and the mean of y and z is 50, then what is the value of x - z?

Answer 1

(x + y)/2 = 32 the mean is the arithmetic average = 1/2 the sum

x+ y = 64

(y+z)/2 = 50

y+z = 100

y+x = 64

subtract to get

z-x = 36 multiply by -1

x-z =-36