Question

matemáticas - (-5+6-3+6)+3-(+5-2+1)

Answer 1

- (-5+6-3+6)+3-(+5-2+1)
=5-6+6-6+3-5+2-1
=5

Answer 2

- (-5+6-3+6)+3-(+5-2+1)
 (5-6+3-6)+3(-5+2-1)
  -4+3-4
  -8+3 
 -5