Question

109-{-21+[11-(-7.-4.-3)]+180:90-15}=​

Answer 1

109-{-21+[11-(-7.-4.-3)]+180:90-15}=

109-{-21+[11-(-84)]+2-15}=

109-{-21+[11+84]-13}=

109-{-21+[95]-13}=

109-{-21+95-13}=

=109-{-21+82}

=109-{+61}

=109-61

=48

espero ter ajudado!

boa tarde!