$$\left. \begin{array} { l } { \frac { 3 x } { 5 } = 15 } \\ { 8 x - 4 ( x - 3 ) } \end{array} \right.$$
$y=112$
$$3x=15\times 5$$
$$3x=75$$
$$x=\frac{75}{3}$$
$$x=25$$
$$y=8\times 25-4\left(25-3\right)$$
$$y=200-4\left(25-3\right)$$
$$y=200-4\times 22$$
$$y=200-88$$
$$y=112$$
$$x=25$$ $$y=112$$
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