упростить выражение ( q/g-5 - 2q): 11-2q/q-5

(q/(q - 5) - 2q) : (11 - 2q)/(q - 5) = (q - 2q(q - 5))/(q - 5) *  (q - 5)/(11 - 2q) = (q - 2q^2 + 10q)/(11 - q) = (11q - 2q^2)/(11 - 2q) = q(11 - 2q)/(11 - 2q) = q