Respuesta:
U = 6
Explicación paso a paso:
U = [30 − (−20) − (−15)] − [25 − (−22)] − 12
U = [30 + 20 + 15] - [25 + 22] - 12
U = 65 - 47 - 12
U = 18 - 12
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Respuesta:
U = 6
Explicación paso a paso:
U = [30 − (−20) − (−15)] − [25 − (−22)] − 12
U = [30 + 20 + 15] - [25 + 22] - 12
U = 65 - 47 - 12
U = 18 - 12
U = 6