The problem:

6 − (− 7) = 13
is an example where we see that subtracting a negative changes the operation to

1 answer

addition.

In this particular equation, we start with the number 6 and subtract the negative number -7.

When we subtract a negative number, it is equivalent to adding the positive version of that number.

So, -7 becomes +7 when we subtract it.

Therefore, the equation becomes:

6 + 7 = 13.

So, subtracting a negative ultimately changes the operation to addition.