Mathematics, 04.07.2019 22:30, kkelley3141

Anita began solving the system {x+y=8, x−y=2 by writing 2x=10 . which property justifies this step? division property of equality multiplication property of equality addition property of equality substitution property of equality

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Anita began solving the system {x+y=8, x−y=2 by writing 2x=10 . which property justifies this step...