If y is the additive inverse of x then x-y = 0 explanations
Answers
Answer:
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Step-by-step explanation:
The notation + is usually reserved for commutative binary operations; i.e., such that x + y = y + x, for all x, y. If such an operation admits an identity element o (such that x + o ( = o + x ) = x for all x), then this element is unique ( o′ = o′ + o = o ). For a given x , if there exists x′ such that x + x′ ( = x′ + x ) = o , then x′ is called an additive inverse of x.
If + is associative (( x + y ) + z = x + ( y + z ) for all x, y, z), then an additive inverse is unique. To see this, let x′ and x″ each be additive inverses of x; then
x′ = x′ + o = x′ + (x + x″) = (x′ + x) + x″ = o + x″ = x″.
For example, since addition of real numbers is associative, each real number has a unique additive inverse.
a − b = a + (−b).
Conversely, additive inverse can be thought of as subtraction from zero:
−a = 0 − a.
Other properties Edit
In addition to the identities listed above, negation has the following algebraic properties:
−(−a) = a, it is an Involution operation
−(a + b) = (−a) + (−b)
a − (−b) = a + b
(−a) × b = a × (−b) = −(a × b)
(−a) × (−b) = a × b
notably, (−a)2 = a2
Answer:
y -x = x in this condition
Step-by-step explanation:
So the answer is x