Final answer:
The circumference of a circle with a radius of 2x units is 4πx units.
Step-by-step explanation:
The circumference of a circle can be found using the formula C = 2πr, where C is the circumference and r is the radius.
In this case, the radius length is given as 2x units. So, substituting this value into the formula, we get C = 2π(2x) = 4πx units.
Hence, the circumference of the circle with a radius length of 2x units is 4πx units.