Expanding the given expression, we get:
(3m-4n)k - m(6n+5k) - (nk-6m)= 3mk - 4nk - 6mn - 5mk - nk + 6m= 3mk - 5mk - 4nk - nk - 6mn + 6m= -2mk - 5nk - 6mn + 6m
Therefore, the simplified expression is -2mk - 5nk - 6mn + 6m.
Expanding the given expression, we get:
(3m-4n)k - m(6n+5k) - (nk-6m)
= 3mk - 4nk - 6mn - 5mk - nk + 6m
= 3mk - 5mk - 4nk - nk - 6mn + 6m
= -2mk - 5nk - 6mn + 6m
Therefore, the simplified expression is -2mk - 5nk - 6mn + 6m.