Question

let x-1 x-4 x-7 ain ap find value of x

Answer 1

Answer:

Step-by-step explanation:

n - 7 + n - 1 = 2(n - 4)

2n - 8 = 2n - 8

n - 7 , n - 4 and n - 7 are Always in AP WHATEVER the value of n is.