Efetue as adições Algébricas

A) -7 -8 +24 -11 +32 -5 -39
B)-15+21+25-6-8-12-38
C)18-43+72-123+18=56+21
D) 1-2 +3-4+5-6
Se puder fazer o cálcullo agradeço, mais se não puder sem problemas

ME AJUDEMMMMMMMM
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