Question

1. If 1,x, 7 are in AP then the value of x is...​

Answer 1

Step-by-step explanation:

Since x+3,2x+1 and x−7 are in A.P., thus,

(x+3)+(x−7)=2(2x+1)

2x−4=4x+2

⇒2x=−6

⇒x=

2

−6

=−3

Answer 2

Answer:

2x=7+1

2x=8

x=4

Step-by-step explanation:

hope helps you