So you can use parenthases to group (-6)+(-6)-(-2) you can add the 2 negatives (-12)-(-2) if you subtract a negative it's like taking away a minus or adding (-12)+(2) (-10)
-6+ -6- -2 Adding a negative is the same as subtracting a positive. -6 - 6 - -2 Subtracting a negative is the same as adding a positive. -6 - 6 + 2 Subtracting a number from a negative number is like adding the positive numbers, just remember to put the negative sign in front of the number. -12 + 2 Adding a positive number to a negative number is like subtracting a positive from another positive, but don't forget the negative sign when you're done. -12 +2 = -10