You just have to subtract four from each side to get x alone.
The answer is x = -18
If it's just a vertical line, then it could be displayed as: x = 5.
A vertical line is not actually a function, and because of such, the entire line is just the value of the x value, as it will never have enough x value.
There are 52 weeks in a year so multiply 356.78 by 52 and you get a yearly salary of 18,552.56 (she probably didnt went to college)
Do parenthesis first (4)
Then, do the division 8/2 = 4
Then multiply 4 and 4 which will be 16
Add 6 to 16 and you get 22