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Properties used in algebra

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Property
Definition
Associative Property of Addition   (3 + 4) + 9 = 3 + (4 + 9)  
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Reflexive Property   841 = 841  
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Identity Property of Addition   m + 0 = m  
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Addition Property of Equality   x = 7, so x + 3 = 10  
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Commutative Property of Multiplication   4(ab) = 4(ba)  
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Definition of Subtraction   4 - 7 = 4 + (-7)  
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Associative Property of Multiplication   (4a)*b = 4(ab)  
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Inverse Property of Multiplication   8(1/8) = 1  
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Multiplication Property of Equality   a = 4, so 3a = 12  
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Distributive Property   3x - 18 = 3(x - 6)  
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Identity Property of Multiplication   79(1) = 79  
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Symmetry   If q = 4, then 4 = q.  
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Commutative Property of Addition   3 + 7 + 12 = 12 + 7 + 3  
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Transitive Property   If a = 3 and 3 = b, then a = b.  
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Inverse Property of Addition   42 + (-42) = 0  
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