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Question
If `[x 2] [[3],[4]] = 2` , find x
Sum
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Solution
Given: `[x 2] [[3],[4]] = 2`
\[ \Rightarrow \begin{array}"3x + 8\end{array} = 2\]
\[ \Rightarrow 3x = 2 - 8\]
\[ \Rightarrow 3x = - 6\]
\[ \Rightarrow x = \frac{- 6}{3}\]
\[ \Rightarrow x = - 2\]
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