Find a basis for the following plane in R 3 x − 3 y − z = 0 First, solve the system, then assign parameters s and t to the free variables (in this order), and write the solution in vector form as s u + t v . Below, enter the components of the vectors u = [ u 1 , u 2 , u 3 ] T and v = [ v 1 , v 2 , v 3 ] T .