Respuesta :

[tex]\begin{gathered} 9\leq3x+4 \\ \text{subtract 4 from both sides} \\ 9-4\leq3x+4-4 \\ 5\leq3x \\ \text{divide both sides by 3} \\ \frac{5}{3}\leq\frac{3x}{3} \\ \frac{5}{3}\leq x \end{gathered}[/tex]

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