Answer:
x = 14
Step-by-step explanation:
So, you start with the problem, obviously.
2x - 9 = 9
From there you need to get the non x term out of the statement by adding the opposite (to both sides).
2x + (-9) = 19
+ +9 = 9
2x = 28
Finally, you divide, or cancel out the number in the term with the variable.
(2x / 2) = (28/2)
x = 14
Hope this helps!