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-3-2-4+6+2-1+2
-6+10
4
-3-2-[-4-6]+(2-1)+2=
-3-2-[-10]+1+2=
-5+10+3
El 10 cambio de signo por que un menos se le anteponia->-[-10]
Y ahora a sumar y restar
-5+10+3
5+3=8.