Question

-2+{-1+[5-3x(10+1)3]-5x7}

Answer 1

-2+{-1+[5-3x(10+1)3]-5x7}=
-2+{ -1+[ 5-3x(11) 3]-5x7}=
-2+{-1+[ 5-33 +3]-5x 7}=
-2+{ -1+[-25]-5x 7}=
-2 +{ -1 -25 -35}=
-2+ {-61}=
-2 -61=
= - 63