Q: What states that any expression equals itself?

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An expression in mathematics is simply a statement - it is not equal to anything. For example,x + 3 is an expression because we are not told what it is equal to, it is just a statement.Expressions require variables (like x or y) in order to be of any interest to mathematicians. However, an expression in itself is rarely all that useful. We can simplify expressions or use arithmetic skills to rearrange them but we can not 'solve' them since there is no equals sign.An equation, however, does have an equals sign and is very useful.

Any number divided by itself equals 1.

The property that 2 equals 2 is called the reflexive property of equality. This property states that any number or object is always equal to itself.

Any number minus itself equals zero. Any number plus its opposite equals zero. Any number times zero equals zero.

1, any number that is divided by itself always equals 1

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It is the identity property of 1 with respect to multiplication.

An expression in mathematics is simply a statement - it is not equal to anything. For example,x + 3 is an expression because we are not told what it is equal to, it is just a statement.Expressions require variables (like x or y) in order to be of any interest to mathematicians. However, an expression in itself is rarely all that useful. We can simplify expressions or use arithmetic skills to rearrange them but we can not 'solve' them since there is no equals sign.An equation, however, does have an equals sign and is very useful.

1

Any number divided by itself equals 1.

Let a be any term. Then, the number that is multiplied itself is expressed as: an where a is any real value, and n is any real integer.

The property that 2 equals 2 is called the reflexive property of equality. This property states that any number or object is always equal to itself.

Yes. Any number, or expression, is equal to itself. An equation such as:x + 5 = x + 5 is true for ANY value of "x".

Any number minus itself equals zero. Any number plus its opposite equals zero. Any number times zero equals zero.

No, because 1 times any number is an axiom, or law, of math; The identity axiom of multiplication, that states any number that is a real number multiplied by 1 equals itself. ex. a x 1 = a, a = 5 5 x 1 = 5 Results will be the same for any real number.

Nothing is a factor BY ITSELF; you can say that one expression is a factor OF ANOTHER EXPRESSION. IF you don't specify the other expression, the question is meaningless.

Any number divided by itself equals 1 as for example 5/5 = 1

1, any number that is divided by itself always equals 1