wtyssan wtyssan 02-12-2022 Mathematics contestada 9. x - 6 ( if x = 6) 10. 7 + x ( if x = 6) 11. 3x - 9 ( if x = 6) 12. 63/x ( if x = 6) 13. 5 + 5x + 10 ( if x = 6)