–6 – (–10)
-6 - -10 = - 6 + 10 = 10 - 6 = 4
If I haven't read it wrong, I believe that you question is -6-(-10).
First, you have to change the equation to -6+10 because the two negatives become a positive.
Then you do -6+10 which equals 4.
I hope that my answer helped!
+14 
