Answer: D
Step-by-step explanation:
[tex]20 - 16 = \sqrt{3} x[/tex]
[tex]4 = \sqrt{3x} [/tex]
take square on both sides to get rid of the square root.
[tex] {4}^{2} = {( \sqrt{3x)} }^{2} [/tex]
16 = 3x
x = 16/3