Question

find the value of p if x 2 x+p and 3x+6 are in a.p

Answer 1

x,2x+p,3x+6. are in ap so the common difference is equal
2x+p-x=3x+6-2x-p
x+p=x+6-p
p+p=x+6-x
2p=6
P=3


hope it's helps