Related Post: 12 4 9 2r 12 4 9 2 12 4 2x 9 )=- 8 X 3 (- 12 )+ 4 2x (- 9 12 4 2x 9 )=- 8 4 12 9 20 4 12 9 24 8 12 4 9 2 Solve 12=4(9-2r) 6 12 4 9 2x2