Question

The average of 8 and what number = 3

Answer 1

-2

Step-by-step explanation

8+x/2=3

2(8+x/2)=3(2)

8+x=6

8-8+x=6-8

x=-2

Answer 2

The number is -2

Explanation:

The average of 8 and x

(8+x)/2

is 3

(8+x)/2 =3

Multiply each side by 2

(8+x)/2 *2 =3*2

8+x = 6

Subtract 8 from each side

8+x-8 = 6-8

x = -2