Respuesta :

Answer:

-3

Step-by-step explanation:

Order of Operations rules require that we do any work within parentheses first.  

Thus, we must begin with (−5)–[ (−7)+(−3)–(−8) ].

Here, we must do the work within square brackets first:  [ (−7)+(−3)–(−8) ].  This is equivalent to [ -7 - 3 + 8 ], or [-2].

Doing this reduces the original problem to the following simpler expression:

(-5) - [-2], which simplifies to -5 + 2, or -3.  The value of this expresion is -3.