2- (-6)
2 - (-6) = 2 + 6 = 8
To subtract two numbers, you can simply change the subtraction sign/operation into an addition sign/operation and change the sign of the number being subtracted.
In this case, we have 2 - (-6). To simplify this expression, we change the subtraction sign to an addition sign and change the sign of -6 to positive:
2 + 6 = 8
So, 2 - (-6) equals 8.