# Roots and solutions

Algebra Level 2

If $p, q, r$ are the roots of the equation

${ x }^{ 3 }-{ 7x }^{ 2 }+3x+1=0$

If $\frac { 1 }{ p } +\frac { 1 }{ q } +\frac { 1 }{ r } = -M$, what is the value of $M$ ?

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