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Simplify 9x + 6 - 4x + - 2x + 1 - 15

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The expression can be simplifed like this:


\begin{gathered} 9x-6-4x-2x+1-15= \\ 9x-4x-2x+6+1-15= \\ 9x-6x+7-15=3x-8 \end{gathered}

Therefore, the simplified expression is 3x-8

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