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Algebra 10 Online
OpenStudy (anonymous):

|2a-5|=7 -5+5=0 7+5=12 2a=12/2 =6 |2a+5|=7 5-5=0 7-5=2 2a=2/2 =1 I went and check it says -1 , can someone explain to me why its -1 ?

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