Respuesta:
0 ≤ x ≤ 3.5
[0,3.5]
Explicación paso a paso:
5 ≤ 2x+5 ≤ 12
5-5 ≤ 2x+5-5 ≤ 12-5
0 ≤ 2x ≤ 7
0/2 ≤ 2x/2 ≤ 7/2
[0,3.5] es un intervalo cerrado
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Respuesta:
0 ≤ x ≤ 3.5
[0,3.5]
Explicación paso a paso:
5 ≤ 2x+5 ≤ 12
5-5 ≤ 2x+5-5 ≤ 12-5
0 ≤ 2x ≤ 7
0/2 ≤ 2x/2 ≤ 7/2
0 ≤ x ≤ 3.5
[0,3.5] es un intervalo cerrado