Answer:
Explanation:
1.
A
2.
3.
4.
Let the number=x
double=2x
add 6
2x+6
divide by 2
(2x+6)/2=x+3
subtract 3
x+3-3=x
which is the original number
(2x+6)/2-3=x+3-3=x
9.2m questions
11.8m answers