An integer is any whole number.
The first integer: 12
The second integer: -5
For the first integer, you are adding 12, and there is always an invisible + in front of positive numbers, therefore making the first integer 12
The second integer is-5 because you are subtracting 5. when you subtract 5 and write it out in number form it literally shows: -5
I hope I helped =^w^=
