reece-green_60ab108a1008d
reece-green_60ab108a1008d
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2 - 3 {2 - [(-3 + 2)(3 - 5)]} - 1 = (Começando pelos parênteses) = 2 - 3 {2 - [(-1)(-2)]} - 1 = = 2 - 3 (2 - 2) - 1 = = 2 - 3 (0) - 1 = = 2 - 0 - 1 = = 1 Resposta: b) 1