Question

Reducir:
D=-{-9-8[-2-8(9-10)+6](10/5-2)+9-(-8+7)}+5

Answer 1

-(-9-8(-2-8(-1)+6)(10/5-10/5)+9-(-1))+5
-(-9-8(-2+8+6)x0+9+1)+5
-(-9-8(6+6)x0+9+1)+5
-(-9-8x12x0+9+1)+5
-(-9-0+9+1)+5
-(-9+9+1)+5
-(0+1)+5
-1+5
4