Question

If x-1 , x+3 , 3x-1 are in A. P then x is equal to
A) 4
B) 5
C) 6
D) 8

please give answer for this by step by step​

Answer 1

Answer:

A) 4

Step-by-step explanation:

As we know , the defference in A.P is equal then,

x+3-(x-1)=3x-1-(x+3)

x+3-x+1=3x-1-x-3

4=2x-4

2x=8

x=4