Solve the system using elimination.

3x-4y=9

-3x+2y=9

A. (-9,-9)

B. (-27,-9)

C. (3,9)

D. (-3,-6)

The answer is A.

Step-by-step explanation:

A. 3 * (-9) = - 27, 4 * (-9) = - 36, - 27 - (-36) = 9

B. 3 * (-27) = - 81, 4 * (-9) = - 36, - 81 - (-36) = - 45

C. 3*3 = 9, 4*9 = 36, 9-36 = - 27

D. 3 * (-3) = - 9, 4 * (-6) = - 24, - 9 - (-24) = 15