Question

−[−{[(+3) + (−2)] − [(−5) + (−7)]}] =

1 nada mas y ya-

Answer 1

Respuesta:

sale 13

Explicación paso a paso:

Answer 2

Respuesta:

−[−{[(+3) + (−2)] − [(−5) + (−7)]}] =

−[−{[+3 −2] − [−5 −7]}] =

−[−{[+1] − [-12]}] =

−[−{+1 + 12}] =

−[−1 + 12] =

−[+11] = -11