Question

If x-1, x+1, x+3 are three consecutive terms of an A.P. then find the value of x?

Answer 1

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

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

x+1=x+3

1=3
Therefore the answer is invalid

Answer 2

Answer:

Step-by-step explanation:

a=x-1 b=x+1 c=x+3

b-a=c-b

2b=a+c

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

X=0