Question

-{(-2)+(-9)x5-80:(-4)-(2-3)}

Answer 1

=-{(-2)+(-45)-80:(-4)-(-1)}=-{-2-45-80:-4+1}
=-{-2-45+20+1}=-{-26}
=26

Answer 2

(-2)+(-9)*5-80= -45
(-4)-(2-3) = -3

    -45
   -  -3
  ______
     -42

El resultado seria -42