Answer:
-1 - (-6):
When you subtract a negative number, it's the same as adding its positive counterpart.
-1 - (-6) = -1 + 6 = 5
So, -1 - (-6) equals 5.
9 - (-3):
Similar to the first example, when you subtract a negative number, it's the same as adding its positive counterpart.
9 - (-3) = 9 + 3 = 12
So, 9 - (-3) equals 12.
Explanation: