7. 8x -14 2(4x-7) is the answer 8. 3x +11y The answer is CBF 9. 32x-15 The answer is CBF 13. 1/3x-1/3 1/3(x-1) is your answer 14. 1/2x+1/2 1/2(x+1) is your answer 10. 72x -18xy 18x(4-y) is your answer 11.45xy-81y 9y(5x-9) 12. 25x+14y CBF is your answer