Question

The mean of five numbers 3, 7, 9, 12, and x is 8. Find the value of x.

Answer 1

Answer:

8

Step-by-step explanation:

U literally said x is 8

Answer 2

Answer:

$8 = \frac{(3 + 7 + 9 + 12 + x)}{5} \\ 8 \times 5 = 31 + x \\ 40 = 31 + x \\ x = 9$