The equation
4x + 2k − 11 = kx − k + 1
is really a family of equations, because for each value of k, we get a different equation with the unknown x. The letter k is called a parameter for this family. What value should we pick for k to make the given value of x a solution of the resulting equation? (If all real numbers are solutions, enter REALS.)
(a)
x = -1
