Question

if 2,x,12 are in arithmetic progression then x=_____​

Answer 1

Answer:

$x = 7$

Step-by-step explanation:

If 2, x, 12 are in AP, their common difference (d) is same.

➡$x - 2 = 12 - x$

➡$2x = 14$

➡$x = \frac{14}{2}$

➡$x = 7$

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Answer 2

Answer:

x = 7

Step-by-step explanation:

Given:

a1 = 2

a2 = x

a3 = 12

✨a2 - a1 = a3 - a2

✨x - 2 = 12 - x

✨x + x = 12 + 2

✨2x = 14

✨x = 14/2

✨x = 7

Therefore, x = 7