Answer:
x = 4
Step-by-step explanation:
the angles with the equations need to be congurent for the lines to be parallel.
Thus Eq1 = Eq2
9x + 4 = 5x + 20
4x = 16
9x+4=5x+20[parallel lines]
9x-5x=20-4
4x=16
x=4
by above information
