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Mathematics 21 Online
OpenStudy (anonymous):

Which property of equality justifies the statement If y + 7 = 9 then y = 2?

OpenStudy (anonymous):

Addition Property of Equality Multiplication Property of Equality Subtraction Property of Equality Transitive Property of Equality

OpenStudy (poopsiedoodle):

addition. It's the only thing that's actually used in here.

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