Hey there!
We know that the dividend is 24.
If we were to divide 24 by 4, we would get 6.
4+2=6
This keeps within the boundaries set by the problem.
When finding numbers like these, it is easiest to see what multiplies to make a certain number than use the rules to find which ones work.
1,24
2,12
3,8
4,6
It makes it much easier.
I hope this helps!
~kaikers