$$( \frac { 1 } { 3 } + \frac { 1 } { 2 } ) \cdot x = 3 , 75$$
$y=75$
$$\frac{5}{6}x=3$$
$$x=3\times \frac{6}{5}$$
$$x=\frac{18}{5}$$
$$x=\frac{18}{5}$$ $$y=75$$
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