Euclidean Geometry #5

In $\mathbb{R}^3$ consider the line r whose equations are:

r $\equiv$ {x - 2y - 2z = 1, x + 5y - z = 0}

and the plane $\pi$ whose equation is $\pi \equiv 2x + y +mz = n$ . Find m, n and submit your answer as m + n, knowing that r is contained in $\pi$