Question

Solve the system using elimination.

3x-4y=9
-3x+2y=9
A. (-9,-9)
B. (-27,-9)
C. (3,9)
D. (-3,-6)

Answer 1

The answer is A.

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