Răspuns :
-4-5+8+3-2-9-7+1-3+2=16
=-9+8+3-2-9-7+1-3+2
=-1+3-2-9-7+1-3+2
=2-2-9-7+1-3+2
=0-9-7+1-3+2
=-9-7+1-3+2
=-16+1-3+2
=-15-3+2
=-18+2=
=-16
=-9+8+3-2-9-7+1-3+2
=-1+3-2-9-7+1-3+2
=2-2-9-7+1-3+2
=0-9-7+1-3+2
=-9-7+1-3+2
=-16+1-3+2
=-15-3+2
=-18+2=
=-16