E) Si: a= -3 ; b= 7; c= -2; d= -8; e= 5

1) a – [b + c] = -3 – [7 + (-2)] = -3 – [5] =-3 + [-5] =

2) 6. [a – d] + [b – e]= -

3) a + c – e

4) 7. [b + c] + [d – e]

5) a – [d + e]