6r + 7 13 + 7r 7-13 + r R - 6 CD DE n-3n 14-4n 2n 14-4n 2n-14N-7 EF FG 2X + 6 100 + 4X 2x -4 + 4X 2x 4 GH-HI 2-10x -8x-8 2- 2x 8 10 2x IJ-JK 3 (1-3x) 2 (-4x + 7) 3-9x 8x + 14 3 x + 14 X 5 2X + 10 3x + 15 C + D 6x + 8 3x + 19 9x 127 E + F 7X-2 3x + 12 10x +10 G + H 5x + 14 4x + 5 9x + 19 J + I J + I 4 + 2x 3x + 1 5xt5 2x + 15 + 3X + 10 5x + 25 M + N 3 (x + 10) 6x + 15 3xt3O 6xt15 9x + 45 O + P 5x-10 4x + 28 O + P 5X-10 4x + 28 9x + 18 Q + R 7x-15 8x-15 15X-30 S + T 4 + 5xx + 2 6x + 6