so let’s start at 13.so 13 is that point on the number line and then we’re subtracting a negative five so a negative five is the same thing as adding a positive five so let’s go five units to the right one two three four five and that takes us to this point right over here so this point right over here is our blank so this is our blank and we could view this as subtracting a negative five or we could view this as adding a positive five so this blank is equal to 18. 13 is located five units to the right of 8 on a number line. We can arrive at this conclusion by subtracting a negative 5 from 13, which is the same as adding a positive 5. Alternatively, we can say that 13 is equal to 8 plus negative 5.