Respuesta:
=19
Explicación paso a paso:
[-6+(4+2)-(-9)]-[(-4)-(+7-5)+(-12)]+7-15
[-6+(6)-(-9)]-[(-4)-(2)+(-12)]-8
[-6+6+9]-[-4- 2 -12]-8
[9]-[-18]-8
9+18-8
9+10
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Verified answer
Respuesta:
=19
Explicación paso a paso:
[-6+(4+2)-(-9)]-[(-4)-(+7-5)+(-12)]+7-15
[-6+(6)-(-9)]-[(-4)-(2)+(-12)]-8
[-6+6+9]-[-4- 2 -12]-8
[9]-[-18]-8
9+18-8
9+10
=19