Substitute -4 in for W. For #1 parenthesis first so -4 - 4 =-8. Then multiple by 6 so -48 then divide by 8 so -6. Or after doing the parenthesis the 8 on the top and bottom cancel giving -6.
Discussion
Lol, I worked out the brackets, once I saw it was 8 and only being multiplied, I saw the perfect opportunity to simplify... Divide by 8, you cross off the eights on both top and bottom and are left with 6*(-1)/1... So -6.