michelle1733 michelle1733
  • 27-09-2018
  • Mathematics
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what is 5s-9<2s+12

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gmany
gmany gmany
  • 27-09-2018

[tex]5s-9 < 2s+12\ \ \ \ \ |\text{add 9 to both sides}\\\\5s < 2s+21\ \ \ \ |\text{subtract 2s from both sides}\\\\3s < 21\ \ \ \ |\text{divide both sides by 3}\\\\\boxed{x < 7\to s\in(-\infty,\ 7)}[/tex]

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