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P.1-P.3 Algebra

ExpressionProperty
A+B and AB Closure
a+b=b+a and ba=ab Commutative
a+(b+c)= (a+b)=c and a(bc)=(ab)c Associative
a(b+c)= ab+ac Distributive
0+a=a and 1a=a Identity
0a=0 Multiplication property of zero
-a+a=0 Additive inverse
1/a=1 Multiplicative inverse
a=a Reflexive
a=b, b=a Symmetric
a=b, b=c, a=c Transitive
a=b, b or a can substitute for each other in an expression involving the two. Substitution
Created by: xxm_mmz
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