Answer:
x=18
Step-by-step explanation:
(3x-9)= 45 degrees because the angle you are solving for is half of a right angle (90 divided by 2 = 45)
so you take 45 and add 9 to it. That equals 54. To get the value of x, you divide 54 by 3 and you get 18.
hope this helps!
