7x - 3y = 42x - 4y = 1Which of the following system of equations is not equal to the system of equations shown above? a.28x - 12y = 16 and -6x + 12y = -3b.14x - 6y = 4 and -14x + 28y = 1c.-28x + 12y = -16 and 28x - 56y = 14