Respuesta:
1 < x ≤ 2.33
(1,2.33]
Explicación paso a paso:
8 < 3x+5 ≤ 12
8 - 5 < 3x + 5 - 5 ≤ 12 - 5
3 < 3x ≤ 7
3/3 < 3x/3 ≤ 7/3
(1,2.33] semicerrado (mixto)
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Respuesta:
1 < x ≤ 2.33
(1,2.33]
Explicación paso a paso:
8 < 3x+5 ≤ 12
8 - 5 < 3x + 5 - 5 ≤ 12 - 5
3 < 3x ≤ 7
3/3 < 3x/3 ≤ 7/3
1 < x ≤ 2.33
(1,2.33] semicerrado (mixto)