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butty11720 butty11720
  • 25-09-2014
  • Mathematics
Answered

28-9X=-12-11X


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mariamikayla
mariamikayla mariamikayla
  • 25-09-2014

\(28-9x=-12-11x \\\\ -9x+11x=-12-28 \\\\ 2x=-40 \\\\ \boxed{x=-\frac{40}{2}=-20}\)

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