$$\left. \begin{array} { l } { m / 8 n = n - ( n + 2 ) } \\ { m = 3 } \\ { 3 * ( - 5 ) } \end{array} \right.$$
$o=-15$
$$\frac{3}{8}n=n-\left(n+2\right)$$
$$\frac{3}{8}n=n-n-2$$
$$\frac{3}{8}n=-2$$
$$n=-2\times \frac{8}{3}$$
$$n=-\frac{16}{3}$$
$$o=-15$$
$$m=3$$ $$n=-\frac{16}{3}$$ $$o=-15$$
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