Respuesta:
[tex]1 < x < 5 \\ 1 + 3 < x + 3 < 5 + 3 \\ 4 < x + 3 < 8[/tex]
Luego, A={5,6,7}
A tiene 3 elementos
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Respuesta:
[tex]1 < x < 5 \\ 1 + 3 < x + 3 < 5 + 3 \\ 4 < x + 3 < 8[/tex]
Luego, A={5,6,7}
A tiene 3 elementos