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3 - ( - 6 +4) - 3 - ( -3 - 17) =
3 - ( -2) - 3 - ( -20) =
3 + 2 - 3 + 20 =
25 - 3 =
22
Respuesta
22
Se utilizo ley de signos para deshacer parentesis
- por - = +
3 - ( -2) - 3 - ( -20) =
3 + 2 - 3 + 20 =
25 - 3 =
22
Respuesta
22