HELP! What is the value of X that will make A parallel to B? WILL GIVE BRAINLIEST!

Answer:
x = 20.
Step-by-step explanation:
For A tp be parallel to B the angles 5x + 8 and 3x + 11 must add up to 180 degrees.
5x + 9 + 3x + 11 = 180
8x = 180 - 20 = 160
x = 160/8
x = 20.