Question

Resolver {(33-15:3-4):6-27*3+17}-2/7-2/3-1/21

Answer 1

{(29-15:3):6-27*3-17-2/7-2/3-1/21=
(29-5):6-27*3-17-2/7-2/9-1/27=
(24):6-27*3-17-2/7-2/9-1/27=
4-27*3-17-2/7-2/3-1/21=
-13-81-2/7-2/3-1/21=
-94/1-2/7-2/3-1/21=
-1995/21= - 95