The first step you need to do is get rid of the fraction so that we can isolate the x variable. To do that, you multiply each side by 2 with the multiplication property of equality, which states, that whatever you multiply on one side, you must do it to the other.
(2)x/2-(2)7=9(2)
x-14=18
To continue isolating the variable, you add 14 to both sides. The addition property of equality states that whatever you add on one side, you must do it to the other.
