Question

Amy was thinking of a number then divides by 2 then adds 11 and the answer was 12 what was the original number?

Answer 1

2

Explanation:

Let x be the original number.

x/2 +11=12

Now solve for x

x=2

Answer 2

The number was 2

Explanation:

To solve this you would just have to work backwards using the inverses of operations previously used

First you would subtract 11 from 12:

12-11=1

Then you would multiply by 2:

1 x 2=2