Respuesta:
* -21 + 7 - 28 -12 = -54
* 12 - 36 -45 +54 = -15
* -5 +7 +3 =5
* (-23 + ( -16 - 5) + 12) - 15
(-23 - 21 + 12) -15 = -47
* (-36 + 8 - 12 + 4) + 2
(-36) +2 = -34
Explicación paso a paso:
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Respuesta:
* -21 + 7 - 28 -12 = -54
* 12 - 36 -45 +54 = -15
* -5 +7 +3 =5
* (-23 + ( -16 - 5) + 12) - 15
(-23 - 21 + 12) -15 = -47
* (-36 + 8 - 12 + 4) + 2
(-36) +2 = -34
Explicación paso a paso: