An algebra problem by Wildan Bagus Wicaksono

Algebra Level 3

If $x+\dfrac 1x =7$ , find the value of $y$ such that

$\large \frac { y{ x }^{ 2017 } }{ { x }^{ 2019 }+{ x }^{ 2017 }+{ x }^{ 2015 } } =\frac { 5 }{ 6 }$