Question

if 3+x,x-3,-2x+12 are in A.P.,then the value of x is​

Answer 1

Answer:

X=7

Step-by-step explanation:

3+x, x-3, - 2x+12 in A.P. Then

A2 - A1 = d(Common Diffence)

A3- A2 = d

So,

(x-3)-(x+3) = (-2x+12)-(x-3)

x-3-x-3 = - 2x+12-x+3

-6 = -3x+15

-3x = - 21

X = 7