I'm not exactly sure, so if I'm wrong please correct me.
The equation is 2kg + x = s
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(can be any variable letter)
Answer:

Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
Answer:
30
Step-by-step explanation:
Did you just do this for fun?
Either way have a good rest of your day!
Answer: 
Step-by-step explanation:
