Respuesta:
a)-12+26-8+15+23-20-25+10=
14-8+38-20-25+10
6+18-25+10
24-25+10
-1+10
+9
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Respuesta:
a)-12+26-8+15+23-20-25+10=
14-8+38-20-25+10
6+18-25+10
24-25+10
-1+10
+9