Solve the following problems. 13. A number increased by 9 is 35. Find the number. 14. 18 is 5 less than a number. Find the number. 15. #8 is subtracted from a number, the result is 2 What is the number? 16. The surn of two numbers is 18. One number is 8, what is the other number 17. If 10 is added to a number, the result is 42. What is the number? 18. Twice a number minus 15 is 45. What is the number? 19. 2x + 5 = 21 20. 3n G ta