Find the point on the curve `y=x^3-11 x+5` at which the tangent has the equation `y=x-11`

Explanation

Slope of the tangent $y=x-11$ is 1 ,
$$ y=x^{3}-11 x+5 $$
or
$$ \frac{d y}{d x}=3 x^{2}-11 $$
...