please help with the steps, I prefer it as a doc due to my broken hand, Thanks

9. For each statement below, write then solve an equation to determine the number. Verify the solution. a) Two times a number is - 10. b) Three times a number, plus 6.4, is 13.9. c) Four times a number is -S.8. d) Ten is equal to two times a number, plus 3.6. 10. Solve each equation. Verify the solution. = 15 " - 1.5=-7 c) - 1.5 = d) 5 = 1 - - 5 20 = 1.2 e) 5 1) 1.2 = 20 + 5.1 11. For each statement below, write then solve an equation to determine the number. Verify the solution. a) A number divided by 4 is -7. b) Three, plus a number divided by 5 is 6. c) One-half of a number is 2.5. d) One-third of a number, minus 4, is 2. 12. Jenna says that, to build the equation -2b + 4 = -, she multiplied each side of the start equation by -2, then added 4 to each side. Can Jenna's partner solve this equation by dividing each side by -2, then subtracting 4 from each side? Explain why or why not. 13. Erica is thinking of a number. If you divide her number by 3 then subtract 13.5, the result is 2.8. a) Let b represent Erica's number. Write an equation to determine this number. b) Solve the equation. c) Verify the solution