Question

solve the system using elimination 3x+3y=-9 3x-3y=21 a. (3,6) b. (-5,2) c. (3,3) d. (2,-5)

Answer 1

The answer would be D. (2,-5)

Answer 2

D because the y cancel if you add them. that leaves you with 6x=12 so x=2. D is the only one where x=2