<h2>
Answer:</h2>
The property that is illustrated by the equation:
is:
Commutative Property.
<h2>
Step-by-step explanation:</h2>
We know that for any relation R and for any set A.
If a,b belongs to A.
Then if a is related to b i.e. a R b
then by the commutative property we have:
b is related to a i.e. b R a
Here the terms 2x and 4y are related to each other by addition sign.
i.e. if 2x is related to 4y i.e. 2x+4y
then by commutative property 4y is related to 2x i.e. 4y+2x
Hence by commutative property , we have:
a+b=b+a
i.e.