What is the value of 6 $x$ if $(1 - 3 x = 7 - 4)$ ?

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Solution

$1 - 3 x = 7 - 4$

$1 - 3 x = 3$

$1 - 3 = 3 x$

$\Rightarrow - 2 = 3 x$

$\Rightarrow 3 x = - 2$

$\Rightarrow x = \frac{- 2}{3}$

$\Rightarrow 6 x = 6 \times - \frac{2}{3}$
$= - 4$ .

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