Respuesta:
[tex] {x}^{3} = - 27 \\ x = \sqrt[3]{ - 27} \\ x = - 3 \\ \\ x = y + 4 \\ - 3 = y + 4 \\ - 3 - 4 = y \\ y = - 7 [/tex]
[tex]x - y \\ - 3 - - 7 \\ - 3 + 7 \\ 4[/tex]
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Respuesta:
[tex] {x}^{3} = - 27 \\ x = \sqrt[3]{ - 27} \\ x = - 3 \\ \\ x = y + 4 \\ - 3 = y + 4 \\ - 3 - 4 = y \\ y = - 7 [/tex]
[tex]x - y \\ - 3 - - 7 \\ - 3 + 7 \\ 4[/tex]