Answer:

2+(-8)+6= 0

19-(-2)-10= 11

-8+20-(-12)= 24

Step-by-step explanation:

For the first equation, 2 + (-8) + 6, we can simplify it by adding the numbers together:

2 + (-8) + 6 = -6 + 6 = 0

The negative sign in front of the 8 means that we subtract 8 from 2, which gives us -6. Then we add 6 to -6 to get 0.

For the second equation, 19 - (-2) - 10, we can simplify it by simplifying the double negative (-(-2) = 2):

19 - (-2) - 10 = 19 + 2 - 10 = 21 - 10 = 11

Adding a negative number is the same as subtracting a positive number, so subtracting -2 is the same as adding 2. Then we subtract 10 from 21 to get 11.

For the third equation, -8 + 20 - (-12), we can simplify it by simplifying the double negative (-(-12) = 12):

-8 + 20 - (-12) = -8 + 20 + 12 = 12 + 20 - 8 = 32 - 8 = 24

Once again, the double negative (-(-12)) simplifies to 12. Then we add 12 to 20 and subtract 8 to get 24.