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Mathematics 12 Online
OpenStudy (anonymous):

If x=4, and 4x+9=y, then 4(4)+9=y. This is an illustration of which property? 1)communitve 2)Associative 3)Transitive 4) Substitution

OpenStudy (espex):

Think about this logically, you are substituting one value for another...

OpenStudy (australopithecus):

substitution you are substituting x for 4

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