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Number 11. It's solving equations containing parentheses and having the variable in both sides.

Number 11 Its Solving Equations Containing Parentheses And Having The Variable In Both Sides class=

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[tex]11.\\\\2(6d+3)=18-3(16-3d)\\\\12d+6=18-48+9d\\\\12d-9d=18-48-6\\\\3d=-36\\\\d=-12[/tex]

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