Question

{–[–(15 + 10) + (–20)]} + {5 + [(–20 + 5)]}

Answer 1

Respuesta:

{–[–(15 + 10) + (–20)]} + {5 + [(–20 + 5)]}

{–[–25 –20]} + {5 - 15]}

{–[–45]} + {-10}

{+45-10}

+35

Explicación paso a paso: