Symmetry, which states that if A = B then B = A
Put A = 4
and B = x + y
The Abelian property or commutative property.
symmetric property of equality
Identity
The zero property because it has a zero.
5 x 4 equals 4 x 5 is commutative property.
symmetric property
The Abelian property or commutative property.
Symmetric Property of Addition
symmetric property of equality
Assuming that there is no significance in the first X being upper case and the second in lower case, it is an IDENTITY.
Commutative property of addition of numbers.
Identity
The zero property because it has a zero.
5 x 4 equals 4 x 5 is commutative property.
The distributive property of multiplication over addition.
x=4 y=0
x + y + z = x + z + y is the commutative property of addition.