Answer:
x=5
Step-by-step explanation:
Isolate the x by adding 9 on both sides:

Take the square root of both sides:

Simplify:
<u>x=5</u>
Answer:

Step-by-step explanation:
<u><em>The complete question is:</em></u>
Find the equation of the line that passes through: (-5, 5), and is perpendicular to the line y = 5/9x - 4
step 1
Find the slope of the line
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
The equation of the given line is

The slope of the given line is

The opposite reciprocal is equal to
----> slope of the perpendicular line
step 2
Find the equation of the line in point slope form

we have


substitute

step 3
Convert to slope intercept form
Isolate the variable y

X = 9
you multiply both sides by 3 because you have to get rid of it and what you do to one side you do to the other then you divide both sides by 2 to isolate the variable. i hope that makes sense.