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-3-(-5+(-4)+(6-9)×3)-4
sólo debes usar la regla de signos
+ × + = +
+ × - = -
- × + = -
+ × + = +
entonces ve resolviendo los parentesis y desarrolla:
-3 + 5 - 4 + (-3) × 3 - 4
-3 + 5 - 1 × 3 - 4
1 × 3 - 4
Resp = - 1