$$\left. \begin{array} { l } { a = 3 , b = - 5 , c = 6 } \\ { \frac { b + c } { a } + \frac { a + c } { b } } \end{array} \right.$$
$d = -\frac{22}{15} = -1\frac{7}{15} \approx -1.466666667$
$$d=\frac{-5+6}{3}+\frac{3+6}{-5}$$
$$d=\frac{1}{3}+\frac{3+6}{-5}$$
$$d=\frac{1}{3}+\frac{9}{-5}$$
$$d=\frac{1}{3}-\frac{9}{5}$$
$$d=-\frac{22}{15}$$
$$a=3$$ $$b=-5$$ $$c=6$$ $$d=-\frac{22}{15}$$
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