Respuesta:
-4 ≤ x ≤ 6
Explicación paso a paso:
-12 ≤ 3x ≤ 18
-12 ≤ 3x , 3x ≤ 18
-12/3 ≤ x , x ≤ 18/3
-4 ≤ x , x ≤ 6
C.S. = [-4, 6]
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Respuesta:
-4 ≤ x ≤ 6
Explicación paso a paso:
-12 ≤ 3x ≤ 18
-12 ≤ 3x , 3x ≤ 18
-12/3 ≤ x , x ≤ 18/3
-4 ≤ x , x ≤ 6
-4 ≤ x ≤ 6
C.S. = [-4, 6]