$$\left. \begin{array} { l } { 19 - 2 p = 6 p = 7 } \\ { x \gt 8 x = 6 } \end{array} \right.$$
$p = \frac{19}{8} = 2\frac{3}{8} = 2.375$
$$19-2p-6p=0$$
$$19-8p=0$$
$$-8p=-19$$
$$p=\frac{-19}{-8}$$
$$p=\frac{19}{8}$$
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