$$\frac { 5 y } { 3 } + \frac { 2 } { 5 } = 1$$
$y=\frac{9}{25}=0.36$
$$5\times 5y+6=15$$
$$25y+6=15$$
$$25y=15-6$$
$$25y=9$$
$$y=\frac{9}{25}$$
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