Question

Find the number that when added to 2.2 produces the same result as the difference between 34.5 and 12.3.

Answer 1

I know you go to aops...

Explanation:

Answer 2

Let the required number be 'x'.

Then,

x + 2.2 = 34.5 - 12.3

or, x = 34.5 - 12.3 - 2.2

or, x = 20

So, the required number is 20.