Need to know if these are correct, and if not what are the correct ones?

(3) The correct answer for the question that is being presented above is this one: "Third choice."
item 1 = 1 + 4 + 9 = 14
item 2 = 1 + 8 = 9
item 3 = 2 + 3 + 4 + 5 = 14
item 4 = 6 + 8 = 14

(4) The correct answer for the question that is being presented above is this one: "Second choice."

** 3x - x -7 = 3

2x = 10

x = 5

** 6. 3x - 3 -x = 3

18x - 3 - x = 3

17x = 6

x = 

** 7. -1 - 2x + 3x = 5

-7 - 2x + 3x = 5

-7 + x = 5

x = 12

** 8. 3x - 22 - x = 6

24x - 22 - x = 6

23x = 28

x = 

** 9. 2x + 3x -10 = 10

18x + 3x - 10 = 10

21x = 20

x =