( + 8) - ( - 3) - ( + 10) + ( - 4) =( - 6) - ( - 7) + ( + 4) - ( + 8) = - (4 + 11 - 5) - ( - 2 + 6) =30 + ( - 3 - 4 + 2) - (10 - 20) =?
( + 8) - ( - 3) - ( + 10) + ( - 4) = ( - 6) - ( - 7) + ( + 4) - ( + 8) = - (4 + 11 - 5) - ( - 2 + 6) = 30 + ( - 3 - 4 + 2) - (10 - 20) =.
3Neruneru