Answer:
-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:
The number is -2
Step-by-step 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
