use cramer's rule to give the value of x for the solution set to the system of equations
[2x - 3y - 2z = -1 ]
3x - 3y - z = 2
2x - 2y - z = 2
a. x = 2 b. x = 6 c. The system does not have a solution. d. x=4 e. x=7 f. None of the above