Question

-7-{-7-[-7-(-7-7)]}=

Answer 1

Ola!

-7-{-7-[-7-(-7-7)]}

=−7−{−7−[−7−(−14)]}=

=−7−{−7−[7]}=

=−7−{−14}=

=7

Espero ter ajudado :)