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2)-(-2)+(+3)+(-2)-(+3)-6+(-4)= -10
2 + 3 - 2 - 3 - 6 - 4
3)-1+(+2)-(-2)-(+3)-1+(-4)= +6
-1 +2 +2 - 3 - 1 - 4
4)3-2+1-4+8-10= -4
respuesta 3
la segunda
es -8
la tercera
-5
la cuarta es
-4