The Abelian property or commutative property.
The property you described, where x + y = y + x, is called commutativity. In the case of addition, it is called the commutative property of addition.
symmetric property of equality
Identity
The zero property because it has a zero.
Symmetric Property of Addition
Yes. According to the commutative property of addition: x + 3 = 3 + x
The Abelian property or commutative property.
If: x+3 = 3+7 Then: x = 7
Well, if x+3=5 and 2+3=5, I'm guessing x should equal 2
The property you described, where x + y = y + x, is called commutativity. In the case of addition, it is called the commutative property of addition.
symmetric property
symmetric property of equality
The Commutative Property of Addition. It also works for multiplication: 3 times 2 is equal to 2 times 3.
Identity
Commutative property of addition of numbers.
The zero property because it has a zero.