If $x = m$ and $y = - 2$ is the solution of the equation $3 x - 2 y = 19$ , find $m$

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Solution

$3 x - 2 y = 19$

$\Rightarrow$ $3 m + 4 = 19$

$\Rightarrow$ $3 m = 15$

$\Rightarrow$ $m = 5$

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